1/16" End Mills | McMaster-Carr

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98 Products

Miniature Carbide Square End Mills


2 Flutes	3 Flutes	4 Flutes

With a mill diameter less than _1/8" or 3 mm, these end mills are great for precise, detailed work such as in electronics, mold making, and medical-device manufacturing. They have a square end for milling square-bottomed slots, pockets, and edges. All are center cutting, allowing plunge cuts into a surface.

Made of solid carbide, these end mills are harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the end mill from breaking.

End mills with fewer flutes provide better chip clearance for high-volume, high-speed plunge, slotting, and roughing cuts; end mills with more flutes provide a finer finish and operate with less vibration when run at high speeds.

Uncoated Carbide—Use uncoated end mills for general purpose milling and short production runs. They stay sharper than coated end mills when used on soft materials like aluminum, leaving a better finish.

Titanium Nitride (TiN)-Coated Carbide—Titanium nitride (TiN)-coated end mills create less friction than uncoated end mills, which means they last longer when run at similar speeds. Use coated end mills for demanding, high-speed jobs in hard material as well as for longer production runs. The coating reduces friction and vibration as they’re used, making them more wear resistant than uncoated end mills.

Titanium Carbon Nitride (TiCN)-Coated Carbide—Titanium carbon nitride (TiCN)-coated end mills have a hard, smooth finish that resists chipping and wear and prevents material from accumulating on the cutting edge. They’re especially good for use in aluminum. Use coated end mills for demanding, high-speed jobs in hard material as well as for longer production runs. The coating reduces friction and vibration as they’re used, making them more wear resistant than uncoated end mills.

Titanium Aluminum Nitride (TiAlN)-Coated Carbide—Titanium aluminum nitride (TiAlN)- and aluminum titanium nitride (AlTiN)-coated end mills dissipate heat better than other end mills, especially at high speeds. At high temperatures, the coating creates a layer of aluminum oxide that transfers heat to the chips, keeping the tool cool, even when used without lubrication. This makes these good for aggressive machining while roughing or making interrupted cuts. Use coated end mills for demanding, high-speed jobs in hard material as well as for longer production runs. The coating reduces friction and vibration as they’re used, making them more wear resistant than uncoated end mills.

	Mill
	Dia.	Dia. Tolerance	Shank Dia.	Lg. of Cut	Overall Lg.	Flute Spacing	Helix Angle	For Use On	End Mill Type	Cut Style		Each
Uncoated Carbide







				2 Flutes

				1/16"	-0.002" to 0"	1/8"	3/16"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	8876A11	000000




						3 Flutes

						1/16"	-0.002" to 0"	1/8"	3/16"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	88815A14	00000




								4 Flutes

								1/16"	-0.002" to 0"	1/8"	3/16"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	3066A11	00000


								Titanium Nitride (TiN)-Coated Carbide







												2 Flutes

												1/16"	-0.002" to 0"	1/8"	3/16"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	8923A11	00000




														3 Flutes

														1/16"	-0.002" to 0"	1/8"	3/16"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	8923A214	00000




																4 Flutes

																1/16"	-0.002" to 0"	1/8"	3/16"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	8923A31	00000


																Titanium Carbon Nitride (TiCN)-Coated Carbide







																				2 Flutes

																				1/16"	-0.002" to 0"	1/8"	3/16"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Square	8515A21	00000




																				3 Flutes

		1/16"	-0.002" to 0"																	1/8"	3/16"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Square	8515A214	00000




																				4 Flutes

				1/16"	-0.002" to 0"															1/8"	3/16"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Square	8515A51	00000


				Titanium Aluminum Nitride (TiAlN)-Coated Carbide







																				2 Flutes

																				1/16"	-0.002" to 0"	1/8"	3/16"	1 1/2"	Equal	30°	Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	8926A141	00000




																				3 Flutes

										1/16"										-0.002" to 0"	1/8"	3/16"	1 1/2"	Equal	30°	Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	8927A141	00000




																				4 Flutes

												1/16"								-0.002" to 0"	1/8"	3/16"	1 1/2"	Equal	30°	Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	8928A141	00000

Carbide Square End Mills for Carbon Fiber, Fiberglass, and Graphite

2 Flutes

3 Flutes

4 Flutes

A diamond or diamondlike coating on these end mills makes them good for machining abrasive material, such as carbon fiber, fiberglass, and graphite. Made of solid carbide, these end mills are harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish on hard material. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the end mill from breaking. They have a square end for milling square-bottomed slots, pockets, and edges. All are center cutting, allowing plunge cuts into a surface.

Diamondlike Carbon (DLC)-Coated Carbide—Diamondlike carbon (DLC)-coated end mills are an economical option for short runs and intermittent use.

Diamond-Coated Carbide—Diamond-coated end mills are good for long production runs. They run twice as fast as other carbide end mills and last up to 30 times longer.

	Mill
	Dia.	Dia. Tolerance	Shank Dia.	Lg. of Cut	Overall Lg.	Flute Spacing	Helix Angle	For Use On	End Mill Type	Cut Style		Each
Diamondlike Carbon (DLC)-Coated Carbide







				2 Flutes

				1/16"	-0.0005" to 0.0005"	1/8"	5/16"	1 1/2"	Equal	33°	Carbon Fiber, Fiberglass, Graphite	Center Cutting	Square	4083A11	000000


				1/16"	-0.0005" to 0.0005"	1/8"	1/2"	2"	Equal	33°	Carbon Fiber, Fiberglass, Graphite	Center Cutting	Square	4083A63	00000




						3 Flutes

						1/16"	-0.0005" to 0.0005"	1/8"	1/8"	2 1/2"	Equal	33°	Carbon Fiber, Fiberglass, Graphite	Center Cutting	Square	8880A25	00000


						1/16"	-0.0005" to 0.0005"	1/8"	1/2"	2 1/2"	Equal	33°	Carbon Fiber, Fiberglass, Graphite	Center Cutting	Square	8880A26	00000




								4 Flutes

								1/16"	-0.0005" to 0.0005"	1/8"	5/16"	1 1/2"	Equal	33°	Carbon Fiber, Fiberglass, Graphite	Center Cutting	Square	4119A11	00000


								1/16"	-0.0005" to 0.0005"	1/8"	1/2"	2"	Equal	33°	Carbon Fiber, Fiberglass, Graphite	Center Cutting	Square	4119A53	00000


								Diamond-Coated Carbide







												4 Flutes

												1/16"	-0.001" to 0.001"	1/8"	3/16"	1 1/2"	Equal	30°	Carbon Fiber, Fiberglass, Graphite	Center Cutting	Square	3725A121	00000

Miniature Carbide Ball End Mills

Ball Cut Style

2 Flutes

3 Flutes

4 Flutes

With a mill diameter less than _1/8", these end mills are great for precise, detailed work such as in electronics, mold making, and medical-device manufacturing. They have a ball end for milling rounded slots, slopes, and contours. All are center cutting, allowing plunge cuts into a surface.

Titanium Aluminum Nitride (TiAlN)-Coated Carbide—Titanium aluminum nitride (TiAlN)-coated end mills dissipate heat better than other end mills, especially at high speeds. At high temperatures, the coating creates a layer of aluminum oxide that transfers heat to the chips, keeping the tool cool, even when used without lubrication. This makes these good for aggressive machining while roughing or making interrupted cuts. Use coated end mills for demanding, high-speed jobs in hard material as well as for longer production runs. The coating reduces friction and vibration as they’re used, making them more wear resistant than uncoated end mills.

	Mill
	Dia.	Dia. Tolerance	Shank Dia.	Lg. of Cut	Overall Lg.	Flute Spacing	Helix Angle	For Use On	End Mill Type	Cut Style		Each
Uncoated Carbide







				2 Flutes

				1/16"	-0.002" to 0"	1/8"	3/16"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Ball	8878A11	000000




						3 Flutes

						1/16"	-0.002" to 0"	1/8"	3/16"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Ball	88825A14	00000




								4 Flutes

								1/16"	-0.002" to 0"	1/8"	3/16"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Ball	88805A14	00000


								Titanium Nitride (TiN)-Coated Carbide







												2 Flutes

												1/16"	-0.002" to 0"	1/8"	3/16"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Ball	8885A141	00000




														3 Flutes

														1/16"	-0.002" to 0"	1/8"	3/16"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Ball	8886A141	00000




																4 Flutes

																1/16"	-0.002" to 0"	1/8"	3/16"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Ball	8887A141	00000


																Titanium Carbon Nitride (TiCN)-Coated Carbide







																				2 Flutes

																				1/16"	-0.002" to 0"	1/8"	3/16"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Ball	8885A142	00000




																				3 Flutes

		1/16"	-0.002" to 0"																	1/8"	3/16"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Ball	8886A142	00000




																				4 Flutes

				1/16"	-0.002" to 0"															1/8"	3/16"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Ball	8887A142	00000


				Titanium Aluminum Nitride (TiAlN)-Coated Carbide







																				2 Flutes

																				1/16"	-0.002" to 0"	1/8"	3/16"	1 1/2"	Equal	30°	Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Ball	8885A143	00000




																				3 Flutes

										1/16"										-0.002" to 0"	1/8"	3/16"	1 1/2"	Equal	30°	Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Ball	8886A143	00000




																				4 Flutes

												1/16"								-0.002" to 0"	1/8"	3/16"	1 1/2"	Equal	30°	Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Ball	8887A143	00000

Carbide Ball End Mills for Mold Making


Ball Cut Style

These end mills cut channels with precise angles and dimensions, reducing the need for additional finishing. Also known as runner cutters. They have a ball-like profile and are specifically designed for creating modified trapezoidal or full round runners. They are not for general purpose contouring like standard ball end mills.

Made of solid carbide, these end mills are harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish on hard material. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the end mill from breaking. These end mills are uncoated, so they’ll stay sharper than coated end mills and leave a better finish on soft materials like aluminum. All are center cutting, allowing plunge cuts into a surface.

	Mill
	Dia.	Dia. Tolerance	Shank Dia.	Lg. of Cut	Overall Lg.	Flute Spacing	Helix Angle	For Use On	End Mill Type	Cut Style		Each
Uncoated Carbide







				2 Flutes—20° Cutting Angle

				1/16"	0.0000" to 0.006"	3/16"	3/8"	2"	Equal	12°	Aluminum, Brass, Bronze, Copper, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Ball	8384N11	000000




						2 Flutes—30° Cutting Angle

						1/16"	0.0000" to 0.006"	3/16"	17/64"	2"	Equal	12°	Aluminum, Brass, Bronze, Copper, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Ball	8384N16	00000

Carbide Tapered Square End Mills

Tapered Cut Style

3 Flutes

Made of solid carbide, these end mills are harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish on hard material. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the end mill from breaking. Also known as taper degree end mills, they're often used to machine angled slots in dies and molds.

Titanium Aluminum Nitride (TiAlN)-Coated Carbide—Titanium aluminum nitride (TiAlN)-coated end mills are better for demanding, high-speed jobs in hard material as well as for longer production runs. They dissipate heat better than other end mills, especially at high speeds. At high temperatures, the coating creates a layer of aluminum oxide that transfers heat to the chips, keeping the tool cool, even when used without lubrication. This makes these good for aggressive machining while roughing or making interrupted cuts.

Noncenter Cutting—Noncenter-cutting end mills are for operations where the peripheral teeth do most of the work, such as shoulder milling, contouring, and finishing. They cannot be used for plunge cuts.

		Mill
	Taper Angle per Side	Dia.	Dia. Tolerance	Max. Taper Dia.	Shank Dia.	Lg. of Cut	Overall Lg.	Flute Spacing	For Use On	End Mill Type	Cut Style		Each
Uncoated Carbide







				3 Flutes

				1°	1/16"	-0.002" to 0.002"	3/32"	1/8"	1/2"	2"	Equal	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Noncenter Cutting	Tapered	8946A24	000000


				1°	1/16"	-0.002" to 0.002"	3/32"	1/8"	3/4"	2"	Equal	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Noncenter Cutting	Tapered	8946A25	00000
				2°	1/16"	-0.002" to 0.002"	1/8"	3/16"	1"	3"	Equal	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Noncenter Cutting	Tapered	8946A46	00000
				5°	1/16"	-0.002" to 0.002"	5/32"	1/4"	1/2"	2"	Equal	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Noncenter Cutting	Tapered	8946A67	00000


				Titanium Aluminum Nitride (TiAlN)-Coated Carbide







								3 Flutes

								1°	1/16"	-0.002" to 0.002"	3/32"	1/8"	1/2"	2"	Equal	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Noncenter Cutting	Tapered	8172N15	00000


								1°	1/16"	-0.002" to 0.002"	3/32"	1/8"	3/4"	2"	Equal	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Noncenter Cutting	Tapered	8172N16	00000
								2°	1/16"	-0.002" to 0.002"	5/32"	3/16"	1"	3"	Equal	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Noncenter Cutting	Tapered	8172N28	00000
								5°	1/16"	-0.002" to 0.002"	5/32"	1/4"	1/2"	2"	Equal	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Noncenter Cutting	Tapered	8172N44	00000

Carbide Ball End Mills for Carbon Fiber, Fiberglass, and Graphite

Ball Cut Style

2 Flutes

3 Flutes

4 Flutes

These end mills have a diamond or diamondlike coating for machining abrasive material, such as carbon fiber, fiberglass, and graphite. Made of solid carbide, they are harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the end mill from breaking. They have a ball end for milling rounded slots, slopes, and contours. All are center cutting, allowing plunge cuts into a surface.

Diamondlike Carbon (DLC)-Coated Carbide—Diamondlike carbon (DLC) coated end mills are an economical option for short runs and intermittent use.

Diamond-Coated Carbide—Diamond-coated end mills are good for long production runs. They run twice as fast as other carbide end mills and last up to 30 times longer.

	Mill
	Dia.	Dia. Tolerance	Shank Dia.	Lg. of Cut	Overall Lg.	Flute Spacing	Helix Angle	For Use On	End Mill Type	Cut Style		Each
Diamondlike Carbon (DLC)-Coated Carbide







				2 Flutes

				1/16"	-0.001" to 0.0005"	1/8"	5/16"	1 1/2"	Equal	33°	Carbon Fiber, Fiberglass, Graphite	Center Cutting	Ball	4083A31	000000


				1/16"	-0.001" to 0.0005"	1/8"	1/2"	2"	Equal	33°	Carbon Fiber, Fiberglass, Graphite	Center Cutting	Ball	4083A83	00000




						3 Flutes

						1/16"	-0.001" to 0.0000"	1/8"	1/8"	2 1/2"	Equal	35°	Carbon Fiber, Fiberglass, Graphite	Center Cutting	Ball	8880A38	00000


						1/16"	-0.001" to 0.0000"	1/8"	1/2"	2 1/2"	Equal	35°	Carbon Fiber, Fiberglass, Graphite	Center Cutting	Ball	8880A39	00000




								4 Flutes

								1/16"	-0.001" to 0.0005"	1/8"	5/16"	1 1/2"	Equal	33°	Carbon Fiber, Fiberglass, Graphite	Center Cutting	Ball	4119A31	00000


								1/16"	-0.001" to 0.0005"	1/8"	1/2"	2"	Equal	33°	Carbon Fiber, Fiberglass, Graphite	Center Cutting	Ball	4119A73	00000


								Diamond-Coated Carbide







												4 Flutes

												1/16"	-0.001" to 0.0010"	1/8"	3/16"	1 1/2"	Equal	30°	Carbon Fiber, Fiberglass, Graphite	Center Cutting	Ball	3725A123	000000

Fast-Cut Carbide Square End Mills

Square Cut Style

4 Flutes

Variable spacing between the flutes reduces vibration, allowing these end mills to provide fast cuts, smooth finishes, and long tool life on hard materials. Made of solid carbide, these end mills are harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish on hard material. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the end mill from breaking. They have a square end for milling square-bottomed slots, pockets, and edges.

Titanium Aluminum Nitride (TiAlN)-Coated Carbide—A titanium aluminum nitride (TiAlN) or aluminum titanium nitride (AlTiN) coating allows them to dissipate heat better than other end mills, especially at high speeds. At high temperatures, the coating creates a layer of aluminum oxide that transfers heat to the chips, keeping the tool cool, even when used without lubrication. Aluminum titanium nitride (AlTiN) has a higher percentage of aluminum than titanium aluminum nitride (TiAlN).

Center Cutting—Center-cutting end mills allow plunge cuts into a surface.

Overall Lg.	Flute Spacing	Helix Angle	For Use On	End Mill Type	Cut Style		Each







Titanium Aluminum Nitride (TiAlN)-Coated Carbide—4 Flutes

1/16"	1/8"	1/8"	1 1/2"	Variable	35° to 38°	Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	8745A43	000000

Carbide Square End Mills with Two Milling Ends


2 Flutes	4 Flutes

When one end wears out, switch to the opposite end for two times the life of a standard carbide end mill. Made of solid carbide, these end mills are harder, stronger, and more wear resistant than high-speed steel for the longest life and best finish on hard material. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the end mill from breaking. They have square ends for milling square slots, pockets, and edges. All are center cutting, allowing plunge cuts into a surface.

Uncoated Carbide—Use uncoated end mills for general purpose milling and short production runs.

Titanium Nitride (TiN)-Coated Carbide—Titanium nitride (TiN)-coated end mills create less friction than uncoated end mills, which means they last longer when run at similar speeds. Use coated end mills for demanding, high-speed jobs in hard material as well as for longer production runs. They’re more wear resistant than uncoated end mills.

Titanium Carbon Nitride (TiCN)-Coated Carbide—Titanium carbon nitride (TiCN)-coated end mills have a hard, smooth finish that resists chipping and wear and prevents material from accumulating on the cutting edge. They’re especially good for use in aluminum. Use coated end mills for demanding, high-speed jobs in hard material as well as for longer production runs. They’re more wear resistant than uncoated end mills.

Titanium Aluminum Nitride (TiAlN)-Coated Carbide and Aluminum Titanium Nitride (AlTiN)-Coated Carbide—Titanium aluminum nitride (TiAlN)- and aluminum titanium nitride (AlTiN)-coated end mills dissipate heat better than other end mills, especially at high speeds. At high temperatures, the coating creates a layer of aluminum oxide that transfers heat to the chips, keeping the tool cool, even when used without lubrication. Aluminum titanium nitride (AlTiN) has a higher percentage of aluminum than titanium aluminum nitride (TiAlN). Use coated end mills for demanding, high-speed jobs in hard material as well as for longer production runs. They’re more wear resistant than uncoated end mills.

2 Flutes—End mills with two flutes provide better chip clearance for high-volume, high-speed plunge, slotting, and roughing cuts.

4 Flutes—End mills with four flutes provide a finer finish and operate with less vibration when run at high speeds.

	Mill
	Dia.	Dia. Tolerance	Shank Dia.	Lg. of Cut	Overall Lg.	Flute Spacing	Helix Angle	For Use On	End Mill Type	Cut Style		Each
Uncoated Carbide







				2 Flutes

				1/16"	-0.002" to 0.000"	1/8"	1/8"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	8888A12	000000




						4 Flutes

						1/16"	-0.002" to 0.000"	1/8"	1/8"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	8889A19	00000


						Titanium Nitride (TiN)-Coated Carbide







										2 Flutes

										1/16"	-0.002" to 0.000"	1/8"	1/8"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	27375A313	00000




												4 Flutes

												1/16"	-0.002" to 0.000"	1/8"	1/8"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	27375A413	00000


												Titanium Carbon Nitride (TiCN)-Coated Carbide







																2 Flutes

																1/16"	-0.002" to 0.000"	1/8"	1/8"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Square	8888A632	00000




																		4 Flutes

																		1/16"	-0.002" to 0.000"	1/8"	1/8"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Square	8889A131	00000


																		Titanium Aluminum Nitride (TiAlN)-Coated Carbide







																				4 Flutes

		1/16"																		-0.002" to 0.000"	1/8"	1/8"	1 1/2"	Equal	30°	Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	8889A132	00000


		Aluminum Titanium Nitride (AlTiN)-Coated Carbide







																				2 Flutes

																				1/16"	-0.002" to 0.000"	1/8"	1/8"	1 1/2"	Equal	30°	Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	8888A633	00000

High-Feed Carbide Rounded-Edge Square End Mills

Rounded-Edge-Square

Cut Style

2 Flutes

Increase your productivity with these end mills that make a shallow cut and produce thin chips that are easily cleared. Often used for slotting and pocketing cuts in mold and die making, they have a 90° profile and rounded corners, which reduce flute breakage and chipping. Also known as torus end mills. All are noncenter cutting for operations where the peripheral teeth do most of the work, such as shoulder milling, contouring, and finishing. They cannot be used for plunge cuts.

An aluminum titanium nitride (AlTiN) coating allows them to dissipate heat better than other end mills, especially at high speeds. At high temperatures, the coating creates a layer of aluminum oxide that transfers heat to the chips, keeping the tool cool, even when used without lubrication.

	Mill			Neck
	Dia.	Dia. Tolerance	Shank Dia.	Dia.	Lg.	Lg. of Cut	Corner Cut Radius	Overall Lg.	Flute Spacing	Helix Angle	For Use On	End Mill Type	Cut Style		Each
Aluminum Titanium Nitride (AlTiN)-Coated Carbide







				2 Flutes

				1/16"	-0.0005" to 0.0005"	1/4"	0.055"	0.183"	0.004"	0.004"	2"	Equal	0°	Aluminum, Brass, Bronze, Copper, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Noncenter Cutting	Rounded-Edge Square	8124N17	000000


				1/16"	-0.0005" to 0.0005"	1/4"	0.055"	0.308"	0.004"	0.004"	2"	Equal	0°	Aluminum, Brass, Bronze, Copper, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Noncenter Cutting	Rounded-Edge Square	8124N18	00000
				1/16"	-0.0005" to 0.0005"	1/4"	0.055"	0.439"	0.004"	0.004"	2"	Equal	0°	Aluminum, Brass, Bronze, Copper, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Noncenter Cutting	Rounded-Edge Square	8124N19	00000

High-Speed Steel Square End Mills with Two Milling Ends

2 Flutes

4 Flutes

When one end wears out, switch to the opposite end for two times the life of a standard high-speed steel end mill. Made of high-speed steel, these end mills are for general purpose milling in most material, such as aluminum, brass, bronze, iron, and steel. Their square ends make them good for milling square slots, pockets, and edges. All are center cutting, allowing plunge cuts into a surface.

Uncoated High-Speed Steel—Use uncoated end mills for general purpose milling and short production runs.

	Mill
	Dia.	Dia. Tolerance	Shank Dia.	Lg. of Cut	Overall Lg.	Flute Spacing	Helix Angle	For Use On	End Mill Type	Cut Style		Each
Uncoated High-Speed Steel







				2 Flutes

				1/16"	-0.0015" to 0.0000"	3/16"	3/32"	2"	Equal	35°	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Square	2802A14	000000


				1/16"	-0.0015" to 0.0000"	3/16"	3/16"	2 1/4"	Equal	35°	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Square	2802A28	00000
				1/16"	0.0000" to 0.0020"	3/16"	7/32"	2 1/2"	Equal	35°	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Square	2802A81	00000




						4 Flutes

						1/16"	0.0000" to 0.0020"	3/16"	3/32"	2"	Equal	35°	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Square	8807A44	00000


						1/16"	0.0000" to 0.0020"	3/16"	3/16"	2 1/4"	Equal	35°	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Square	8807A49	00000
						1/16"	0.0000" to 0.0020"	3/16"	7/32"	2 1/2"	Equal	35°	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Square	8807A55	00000

Carbide Drill/Mill End Mills

Drill/Mill Cut

Style

2 Flutes

4 Flutes

Made of solid carbide, these end mills are harder, stronger, and more wear resistant than cobalt steel for the longest life and best finish on hard material. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the end mill from breaking. A 90° pointed tip allows them to be used for drilling as well as for slotting, profiling, and chamfering cuts. All are center cutting, allowing plunge cuts into a surface.

Uncoated Carbide—Use uncoated end mills for general purpose milling and short production runs.

Titanium Nitride (TiN)-Coated Carbide—Titanium nitride (TiN)-coated end mills create less friction than uncoated end mills, which means they last longer when run at similar speeds. Use coated end mills for demanding, high-speed jobs in hard material as well as for longer production runs. They’re more wear resistant than uncoated end mills.

Titanium Aluminum Nitride (TiAlN)-Coated Carbide—Titanium aluminum nitride (TiAlN)-coated end mills dissipate heat better than other end mills, especially at high speeds. At high temperatures, the coating creates a layer of aluminum oxide that transfers heat to the chips, keeping the tool cool, even when used without lubrication. Use coated end mills for demanding, high-speed jobs in hard material as well as for longer production runs. They’re more wear resistant than uncoated end mills.

2 Flutes—End mills with two flutes provide better chip clearance for high-volume, high-speed plunge, slotting, and roughing cuts.

4 Flutes—End mills with four flutes provide a finer finish and operate with less vibration when run at high speeds.

	Mill
	Dia.	Dia. Tolerance	Shank Dia.	Lg. of Cut	Overall Lg.	Flute Spacing	Point Angle	Helix Angle	For Use On	End Mill Type	Cut Style		Each
Uncoated Carbide







				2 Flutes

				1/16"	-0.003" to 0.000"	1/8"	3/16"	1 1/2"	Equal	90°	30°	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Drill/Mill	2770A52	000000




						4 Flutes

						1/16"	-0.003" to 0.000"	1/8"	3/16"	1 1/2"	Equal	90°	30°	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Drill/Mill	8747A22	00000


						Titanium Nitride (TiN)-Coated Carbide







										2 Flutes

										1/16"	-0.003" to 0.000"	1/8"	3/16"	1 1/2"	Equal	90°	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Drill/Mill	3723A51	00000




												4 Flutes

												1/16"	-0.003" to 0.000"	1/8"	3/16"	1 1/2"	Equal	90°	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Drill/Mill	8905A41	00000


												Titanium Aluminum Nitride (TiAlN)-Coated Carbide







																2 Flutes

																1/16"	-0.003" to 0.000"	1/8"	3/16"	1 1/2"	Equal	90°	30°	Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Drill/Mill	3723A23	00000




																		4 Flutes

																		1/16"	-0.003" to 0.000"	1/8"	3/16"	1 1/2"	Equal	90°	30°	Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Drill/Mill	8905A33	00000

Cobalt Steel Square End Mills with Two Milling Ends

When one end wears out, switch to the opposite end for two times the life of a standard cobalt steel end mill. With better heat and wear resistance than high-speed steel, these cobalt steel end mills can run at higher speeds and provide better performance on hard material, such as iron, hardened steel, titanium, and tool steel. Their square ends make them good for milling square slots, pockets, and edges. All are center cutting, allowing plunge cuts into a surface.

2 Flutes—End mills with two flutes provide better chip clearance for high-volume, high-speed plunge, slotting, and roughing cuts.

4 Flutes—End mills with four flutes provide a finer finish and operate with less vibration when run at high speeds.

	Mill
	Dia.	Dia. Tolerance	Shank Dia.	Lg. of Cut	Overall Lg.	Flute Spacing	Helix Angle	For Use On	End Mill Type	Cut Style		Each
Uncoated Cobalt Steel







				2 Flutes

				1/16"	-0.0015" to 0.0000"	3/16"	3/32"	2"	Equal	35°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	28425A33	000000


				1/16"	-0.0015" to 0.0000"	3/16"	3/16"	2 1/4"	Equal	35°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	28425A13	00000
				1/16"	0.0000" to 0.0020"	3/16"	7/32"	2 1/2"	Equal	35°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	28425A14	00000




						4 Flutes

						1/16"	0.0000" to 0.0020"	3/16"	3/32"	2"	Equal	35°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	28715A51	00000


						1/16"	0.0000" to 0.0020"	3/16"	3/16"	2 1/4"	Equal	35°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	28715A41	00000
						1/16"	0.0000" to 0.0020"	3/16"	7/32"	2 1/2"	Equal	35°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	28715A61	00000

High-Speed Steel Tapered Square End Mills

Tapered Cut Style

3 Flutes

Use these versatile end mills for milling in most material, including aluminum, brass, bronze, iron, and steel. Also known as taper degree end mills, they're often used to machine angled slots in dies and molds.

Uncoated High-Speed Steel—Use uncoated end mills for general purpose milling and short production runs. They stay sharper than coated end mills when used on soft materials like aluminum, leaving a better finish.

Titanium Nitride (TiN)-Coated High-Speed Steel—Use titanium nitride (TiN)-coated end mills for demanding, high-speed jobs in hard material as well as for longer production runs. They create less friction than uncoated end mills, which means they last longer when run at similar speeds.

3 Flutes—End mills with three flutes provide better chip clearance for high-volume, high-speed plunge, slotting, and roughing cuts.

		Mill
	Taper Angle per Side	Dia.	Dia. Tolerance	Max. Taper Dia.	Shank Dia.	Lg. of Cut	Overall Lg.	Flute Spacing	For Use On	End Mill Type	Cut Style		Each
Uncoated High-Speed Steel







				3 Flutes

				5°	1/16"	-0.002" to 0.002"	5/32"	3/8"	1/2"	2 5/8"	Equal	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Noncenter Cutting	Tapered	8936A69	000000


				Titanium Nitride (TiN)-Coated High-Speed Steel







								3 Flutes

								5°	1/16"	-0.002" to 0.002"	5/32"	3/8"	1/2"	2 5/8"	Equal	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Noncenter Cutting	Tapered	8045N53	00000

Oversize-Tolerance Carbide Square End Mills


2 Flutes	4 Flutes

Also known as NC tolerance end mills, these carbide end mills have oversize mill diameter tolerances. They're sized to match standard high-speed steel end mills, so you can use them as longer-lasting replacements without changing the size of the cut. Made of solid carbide, these end mills are harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish on hard material. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the end mill from breaking. They have a square end for milling square slots, pockets, and edges. All are center cutting, allowing plunge cuts into a surface.

Uncoated Carbide—Use uncoated end mills for general purpose milling and short production runs.

Titanium Aluminum Nitride (TiAlN)-Coated Carbide—Use titanium aluminum nitride (TiAlN)-coated end mills for demanding, high-speed jobs in hard material as well as for longer production runs. They dissipate heat better than other end mills, especially at high speeds. At high temperatures, the coating creates a layer of aluminum oxide that transfers heat to the chips, keeping the tool cool, even when used without lubrication.

2 Flutes—End mills with two flutes provide better chip clearance for high-volume, high-speed plunge, slotting, and roughing cuts.

4 Flutes—End mills with four flutes provide a finer finish and operate with less vibration when run at high speeds.

	Mill
	Dia.	Dia. Tolerance	Shank Dia.	Lg. of Cut	Overall Lg.	Flute Spacing	Helix Angle	For Use On	End Mill Type	Cut Style		Each
Uncoated Carbide







				2 Flutes

				1/16"	0.000" to 0.001"	1/8"	3/16"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	28605A12	000000




						4 Flutes

						1/16"	0.000" to 0.001"	1/8"	3/16"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	28605A26	00000


						Titanium Aluminum Nitride (TiAlN)-Coated Carbide







										2 Flutes

										1/16"	0.000" to 0.001"	1/8"	3/16"	1 1/2"	Equal	30°	Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	4557A123	00000




												4 Flutes

												1/16"	0.000" to 0.001"	1/8"	3/16"	1 1/2"	Equal	30°	Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	4557A126	00000

Carbide Ball End Mills with Two Milling Ends

Ball Cut Style

2 Flutes

4 Flutes

When one end wears out, switch to the opposite end for two times the life of a standard carbide end mill. Made of solid carbide, these end mills are harder, stronger, and more wear resistant than high-speed steel for the longest life and best finish on hard material. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the end mill from breaking. They have a ball end for milling rounded slots, slopes, and contours. All are center cutting, allowing plunge cuts into a surface.

Uncoated Carbide—Use uncoated end mills for general purpose milling and short production runs.

Titanium Nitride (TiN)-Coated Carbide—Use titanium nitride (TiN)-coated end mills for demanding, high-speed jobs in hard material as well as for longer production runs. They’re more wear resistant than uncoated end mills, which means they last longer when run at similar speeds.

2 Flutes—End mills with two flutes provide better chip clearance for high-volume, high-speed plunge, slotting, and roughing cuts.

4 Flutes—End mills with four flutes provide a finer finish and operate with less vibration when run at high speeds.

	Mill
	Dia.	Dia. Tolerance	Shank Dia.	Lg. of Cut	Overall Lg.	Flute Spacing	Helix Angle	For Use On	End Mill Type	Cut Style		Each
Uncoated Carbide







				2 Flutes

				1/16"	-0.002" to 0.000"	1/8"	1/8"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Ball	8762A33	000000




						4 Flutes

						1/16"	-0.002" to 0.000"	1/8"	1/8"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Ball	8766A13	00000


						Titanium Nitride (TiN)-Coated Carbide







										2 Flutes

										1/16"	-0.002" to 0.000"	1/8"	1/8"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Ball	27375A513	00000




												4 Flutes

												1/16"	-0.002" to 0.000"	1/8"	1/8"	1 1/2"	Equal	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Ball	27375A613	00000

Carbide Ball End Mills for Tool Steel, Hardened Steel, and Iron


Ball Cut Style

Flutes have a low helix angle to provide the cutting forces required for difficult-to-machine material, such as hardened steel and iron. Made of solid carbide, these end mills are harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish on hard material. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the end mill from breaking. They have a ball end for milling rounded slots, slopes, and contours. All are center cutting, allowing plunge cuts into a surface.

Aluminum Titanium Nitride (AlTiN)-Coated Carbide—An aluminum titanium nitride (AlTiN) or aluminum chromium nitride (AlCrN) coating allows them to dissipate heat better than other end mills, especially at high speeds. At high temperatures, the coating creates a layer of aluminum oxide that transfers heat to the chips, keeping the tool cool, even when used without lubrication. This makes these good for aggressive machining while roughing or making interrupted cuts.

	Mill										For Maximum Hardness Rockwell C52		For Maximum Hardness Rockwell C62
	Dia.	Dia. Tolerance	Shank Dia.	Lg. of Cut	Overall Lg.	Flute Spacing	Helix Angle	For Use On	End Mill Type	Cut Style		Each		Each
Aluminum Titanium Nitride (AlTiN)-Coated Carbide







				2 Flutes

				1/16"	-0.001" to 0.000"	1/4"	1/16"	2 1/2"	Equal	15°	Hardened Steel, Iron, Tool Steel	Center Cutting	Ball	8942A12	000000	8942A42	0000000

Cobalt Steel Ball End Mills with Two Milling Ends


Ball Cut Style	2 Flutes

When one end wears out, switch to the opposite end for two times the life of a standard cobalt steel end mill. With better heat and wear resistance than high-speed steel, these cobalt steel end mills can run at higher speeds and provide better performance on hard material, such as iron, hardened steel, titanium, and tool steel. Their ball ends make them good for milling rounded slots, slopes, and contours. All are center cutting, allowing plunge cuts into a surface.

2 Flutes—End mills with two flutes provide better chip clearance for high-volume, high-speed plunge, slotting, and roughing cuts.

	Mill
	Dia.	Dia. Tolerance	Shank Dia.	Lg. of Cut	Overall Lg.	Flute Spacing	Helix Angle	For Use On	End Mill Type	Cut Style		Each
Uncoated Cobalt Steel







				2 Flutes

				1/16"	-0.0015" to 0.0000"	3/16"	3/32"	2"	Equal	35°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Ball	2827A15	000000


				1/16"	-0.0015" to 0.0000"	3/16"	3/16"	2 1/4"	Equal	35°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Ball	2827A16	00000
				1/16"	0.0000" to 0.0020"	3/16"	7/32"	2 1/2"	Equal	35°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Ball	2827A17	00000

High-Speed Steel Ball End Mills with Two Milling Ends


Ball Cut Style

When one end wears out, switch to the opposite end for two times the life of a standard high-speed steel end mill. Made of high-speed steel, these end mills are for general purpose milling in most material, such as aluminum, brass, bronze, iron, and steel. Their ball ends make them good for milling rounded slots, slopes, and contours. All are center cutting, allowing plunge cuts into a surface.

	Mill
	Dia.	Dia. Tolerance	Shank Dia.	Lg. of Cut	Overall Lg.	Flute Spacing	Helix Angle	For Use On	End Mill Type	Cut Style		Each
Uncoated High-Speed Steel







				2 Flutes

				1/16"	-0.0015" to 0.0000"	3/16"	3/32"	2"	Equal	35°	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Ball	2802A44	000000


				1/16"	-0.0015" to 0.0000"	3/16"	3/16"	2 1/4"	Equal	35°	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Ball	2802A59	00000
				1/16"	0.0000" to 0.0020"	3/16"	7/32"	2 1/2"	Equal	35°	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Ball	2802A71	00000

Cobalt Steel Tapered Square End Mills

Tapered Cut Style

3 Flutes

With better heat and wear resistance than high-speed steel, these cobalt steel end mills can run at higher speeds and provide better performance on hard material, such as iron and steel. Also known as taper degree end mills, they're often used to machine angled slots in dies and molds.

Uncoated Cobalt Steel—Use uncoated end mills for general purpose milling and short production runs. They stay sharper than coated end mills when used on soft materials like aluminum, leaving a better finish.

Titanium Nitride (TiN)-Coated Cobalt Steel—Use titanium nitride (TiN)-coated end mills for demanding, high-speed jobs in hard material as well as for longer production runs. They create less friction than uncoated end mills, which means they last longer when run at similar speeds.

3 Flutes—End mills with three flutes provide better chip clearance for high-volume, high-speed plunge, slotting, and roughing cuts.

		Mill
	Taper Angle per Side	Dia.	Dia. Tolerance	Max. Taper Dia.	Shank Dia.	Lg. of Cut	Overall Lg.	Flute Spacing	For Use On	End Mill Type	Cut Style		Each
Uncoated Cobalt Steel







				3 Flutes

				5°	1/16"	-0.002" to 0.002"	5/32"	3/8"	1/2"	2 5/8"	Equal	Aluminum, Brass, Bronze, Copper, Fiberglass, Iron, Plastic, Steel	Noncenter Cutting	Tapered	8147N511	000000


				Titanium Nitride (TiN)-Coated Cobalt Steel







								3 Flutes

								5°	1/16"	-0.002" to 0.002"	5/32"	3/8"	1/2"	2 5/8"	Equal	Aluminum, Brass, Bronze, Copper, Fiberglass, Iron, Plastic, Steel	Noncenter Cutting	Tapered	8296N511	00000