14mm End Mills | McMaster-Carr

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24 Products

Carbide Square End Mills


2 Flutes	3 Flutes	4 Flutes

For longer tool life and a better finish in general purpose milling applications, these solid carbide end mills are harder, stronger, and more wear resistant than high-speed steel and cobalt steel end mills. 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.

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. 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—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.

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

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







				2 Flutes

				14	-0.0510 to 0.0000	14	32	89	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	8940A41	0000000




						3 Flutes

						14	-0.0510 to 0.0000	14	32	89	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	8945A41	000000




								4 Flutes

								14	-0.0510 to 0.0000	14	32	89	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	29605A28	000000


								Titanium Nitride (TiN)-Coated Carbide







												2 Flutes

												14	-0.0510 to 0.0000	14	32	89	Equal	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	8866A411	000000




														3 Flutes

														14	-0.0510 to 0.0000	14	32	89	Equal	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	8931A411	000000




																4 Flutes

																14	-0.0510 to 0.0000	14	32	89	Equal	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	8780A411	000000


																Titanium Carbon Nitride (TiCN)-Coated Carbide







																				2 Flutes

																				14	-0.0510 to 0.0000	14	32	89	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Square	8866A412	000000




																				3 Flutes

		14	-0.0510 to 0.0000																	14	32	89	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Square	8931A412	000000




																				4 Flutes

				14	-0.0510 to 0.0000															14	32	89	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Square	8780A412	000000


				Titanium Aluminum Nitride (TiAlN)-Coated Carbide







																				2 Flutes

																				14	-0.0510 to 0.0000	14	32	89	Equal	30°	Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	8866A413	000000




																				3 Flutes

										14										-0.0510 to 0.0000	14	32	89	Equal	30°	Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	8931A413	000000




																				4 Flutes

												14								-0.0510 to 0.0000	14	32	89	Equal	30°	Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	8780A413	000000

High-Speed Steel Square End Mills

2 Flutes

4 Flutes

Use these end mills for general purpose milling in most material, such as aluminum, brass, bronze, iron, and steel. They have a square end for milling square slots, pockets, and edges.

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

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’re more wear resistant than uncoated end mills, which means they last longer when run at similar speeds.

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

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







				2 Flutes

				14	0.000 to 0.025	12.7	28.6	79	Equal	30°	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Square	8853A82	000000




						4 Flutes

						14	0.000 to 0.038	12.7	34.9	86	Equal	30°	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Square	8854A28	00000


						Titanium Nitride (TiN)-Coated High-Speed Steel







										2 Flutes

										14	0.000 to 0.025	12.7	28.6	79	Equal	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Tool Steel	Center Cutting	Square	8694A34	00000

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., mm	Flute Spacing	Helix Angle	For Use On	End Mill Type	Cut Style		Each







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

14	14	26	83	Variable	35° to 38°	Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	8745A64	0000000

Carbide Ball End Mills

Ball Cut Style

2 Flutes

4 Flutes

For longer tool life and a better finish in general purpose milling applications, these solid carbide end mills are harder, stronger, and more wear resistant than high-speed steel and cobalt steel end mills. 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.

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







				2 Flutes

				14	-0.0510 to 0.0000	14	32	89	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Ball	8878A117	0000000




						4 Flutes

						14	-0.0510 to 0.0000	14	32	89	Equal	30°	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Ball	8878A163	000000

Roughing High-Speed Steel Square End Mills

4 Flutes

Serrations along the cutting edge act as chip breakers, so these end mills can remove large amounts of material at high speeds. They are high-speed steel for general purpose milling in most material, such as aluminum, brass, bronze, iron, and steel. Their square end makes them good for milling square slots and edges.

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

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







				4 Flutes

				14	-0.125 to 0.125	12	26	83	Fine	Equal	30°	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Square	8819A815	000000

Cobalt Steel Square End Mills with Two Milling Ends

4 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 square ends make them good for milling square slots, pockets, and edges. All are center cutting, allowing plunge cuts into a surface.

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

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







				4 Flutes

				14	-0.0380 to 0.0000	15.9	34.9	127	Equal	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	8891A43	000000

Fast-Cut Carbide Square End Mills with Chamfer Corner

4 Flutes

A 45° corner chamfer improves cutting edge strength, so these end mills last longer than standard square end mills when milling hard material; however they do not create as sharp of a corner. Variable spacing between the flutes reduces vibration, allowing these end mills to provide fast cuts, smooth finishes, and long tool life on hard materials. 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 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.

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.

Titanium Aluminum Silicon Nitride (TiAlSiN)-Coated Carbide—Titanium aluminum silicon nitride (TiAlSiN)-coated end mills are extremely resistant to wear and diffusion because they have especially high hardness, even at high temperatures.

Overall Lg., mm	Chamfer Wd., mm	Corner Cutting Angle	Flute Spacing	Helix Angle	For Use On	End Mill Type		Each







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

14	14	26	83	0.5	45°	Variable	38°	Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	8745A125	0000000




		Titanium Aluminum Silicon Nitride (TiAlSiN)-Coated Carbide—4 Flutes

		14	14	26	83	0.14	45°	Variable	36° to 38°	Iron, Nickel, Stainless Steel, Steel, Titanium	Center Cutting	8745A361	000000

High-Speed Steel Square End Mills with Two Milling Ends

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







				2 Flutes

				14	0.0000 to 0.0760	15.9	28.6	127	Equal	30°	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Square	8855A73	000000

Fast-Cut Roughing Carbide Square End Mills with Chamfer Corner

Serrations along the cutting edge act as chip breakers, so these end mills can remove large amounts of material at high speeds without sacrificing tool life. Variable spacing between the flutes reduces vibration, also allowing these end mills to provide fast cuts. A 45° corner chamfer improves cutting edge strength, so these end mills last longer than standard square end mills when milling hard material; however they do not create as sharp of a corner. With a high helix angle and wear-resistant titanium aluminum nitride (TiAlN) or aluminum titanium nitride (AlTiN) coating, these end mills provide excellent shearing and chip removal in stainless steel and titanium. They have a square end for milling square-bottomed slots, pockets, and edges. All are center cutting, allowing plunge cuts into a surface.

	Mill, mm
	Dia.	Dia. Tolerance	Shank Dia., mm	Lg. of Cut, mm	Overall Lg., mm	Flute Pitch	Chamfer Wd., mm	Corner Cutting Angle	Flute Spacing	Helix Angle	For Use On	End Mill Type	Cut Style		Each
Aluminum Titanium Nitride (AlTiN)-Coated Carbide







				4 Flutes

				14	-0.07 to 0.000	14	26	83	Coarse	0.5	45°	Variable	36° to 38°	Iron, Stainless Steel, Steel, Titanium	Center Cutting	Square	8207A111	0000000