80mm Long Drill Bits | McMaster-Carr

Black Oxide—The dark finish increases wear resistance and reduces friction to improve chip flow, so these bits can last 50% longer than uncoated bits.

Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated and oxide-coated bits, especially on tough materials like hardened steel and nickel.

					Shank					Each
	Drill Bit Size, mm	Decimal Size Equiv.	Overall Lg., mm	Max. Drilling Dp., mm	Type	Size	Drill Bit Point Type	Mfr.		1-11	12-Up
Jobbers' Length







				Black Oxide

				4.3	0.1693"	80	38.4	Round	4.3 mm	Standard	Dormer Pramet	2958A75	00000	00000


				4.4	0.1732"	80	38.2	Round	4.4 mm	Standard	Dormer Pramet	2958A76	0000	0000
				4.5	0.1772"	80	38	Round	4.5 mm	Standard	Dormer Pramet	2958A77	0000	0000
				4.6	0.1811"	80	37.8	Round	4.6 mm	Standard	Dormer Pramet	2958A78	0000	0000




						Titanium Nitride (TiN) Coated

						4.5	0.1772"	80	38	Round	4.5 mm	Standard	Dormer Pramet	8950A53	0000	0000

Chip-Clearing Cobalt Steel Drill Bits


Jobbers' Length Parabolic Flute Round Shank	Split

Avoid clogs and dissipate heat with cobalt bits that last at least twice as long as high-speed steel. The flutes clear chips to improve coolant flow and prevent damage to the bit and the hole. They also speed up drilling since you don't have to stop to clear the bit manually.

Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.

Uncoated—Polished to eject chips, these are also known as bright finish bits.

						Shank
	Drill Bit Size, mm	Decimal Size Equiv.	Overall Lg., mm	Max. Drilling Dp., mm	Flute Type	Type	Size, mm	Drill Bit Point Type	Mfr.		Each
Jobbers' Length







				Uncoated

				4.3	0.1693"	80	45	Parabolic	Round	4.3	Split	Viking Norseman Drill	2771N745	00000


				4.4	0.1732"	80	45	Parabolic	Round	4.4	Split	Viking Norseman Drill	2771N746	0000
				4.55	0.1791"	80	45	Parabolic	Round	4.55	Split	Viking Norseman Drill	2771N747	0000
				4.6	0.1811"	80	45	Parabolic	Round	4.6	Split	Viking Norseman Drill	2771N748	0000
				4.75	0.187"	80	45	Parabolic	Round	4.75	Split	Viking Norseman Drill	2771N749	0000

Cobalt Steel Drill Bits


Jobbers' Length Round Shank	Split

Tough and wear resistant, cobalt steel bits last at least twice as long as high-speed steel. They can also run up to 25% faster at higher temperatures without being damaged on hard materials, such as nickel.

Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.

Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated and oxide-coated bits, especially on tough materials like hardened steel and nickel.

Titanium Aluminum Nitride (TiAlN) Coated—The hardest and most wear-resistant coating, especially at high temperatures. These bits are best for hard and abrasive materials, such as iron, titanium, and fiberglass.

Gold Oxide—Like black oxide, this finish adds wear resistance and reduces friction for improved chip flow. Because it’s less prone to flaking off, it offers better rust protection when bits aren't in use.

					Shank
	Drill Bit Size, mm	Decimal Size Equiv.	Overall Lg., mm	Max. Drilling Dp., mm	Type	Size	Drill Bit Point Type	Mfr.		Each
Jobbers' Length







				Titanium Nitride (TiN) Coated

				4.3	0.1693"	80	47	Round	4.3 mm	Split	Dormer Pramet	5058N125	00000


				4.7	0.185"	80	47	Round	4.7 mm	Split	Dormer Pramet	5058N126	0000




						Titanium Aluminum Nitride (TiAlN) Coated

						4.3	0.1693"	80	47	Round	4.3 mm	Split	Dormer Pramet	5058N146	00000


						4.5	0.1772"	80	40.3	Round	4.5 mm	Split	Guhring	2753A169	00000




								Gold Oxide

								4.3	0.1693"	80	38.4	Round	4.3 mm	Split	Dormer Pramet	29355A68	0000


								4.5	0.1772"	80	38	Round	4.5 mm	Split	Dormer Pramet	29355A71	0000
								4.7	0.185"	80	37.6	Round	4.7 mm	Split	Dormer Pramet	29355A73	0000

High-Speed Steel Drill Bits for Plastic

The precision-ground, 60° point penetrates gradually to prevent cracking and chipping. It also reduces heat that can deform the material. Use these bits for drilling into acrylic, laminate, and other plastics. They're made of wear-resistant high-speed steel.

Jobbers' Length About Jobbers' Length

					Shank
	Drill Bit Size, mm	Decimal Size Equiv.	Overall Lg., mm	Max. Drilling Dp., mm	Type	Size, mm	Point Angle	Drill Bit Point Type	Mfr.		Each
Uncoated



		4.5	0.1772"	80	55	Round	4.5	60°	Standard	ICS	27465A414	00000

Chip-Clearing High-Speed Steel Drill Bits

Jobbers' Length

High Helix Flute

Round Shank

Jobbers' Length

Parabolic Flute

Round Shank

Split

With flutes that lift chips out of the hole, you don't have to stop drilling to clear these bits manually. They improve coolant flow to dissipate heat and prevent clogs that can damage the bit and ruin the hole. High-speed steel is good for general purpose drilling in most metals.

High Helix Flute—Less aggressive than parabolic flutes for cleaner cuts in soft metals.

Parabolic Flute—A U-shaped groove on the flutes cuts faster and clears chips more quickly than high-helix bits, so these are better for drilling deeper holes.

Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.

Black Oxide—The dark finish increases wear resistance and reduces friction to improve chip flow, so these bits can last 50% longer than uncoated bits.

Uncoated—The most economical option, uncoated bits perform best when used on low-carbon steel and aluminum. Polished to reduce friction, they're also known as bright finish bits.

						Shank
	Drill Bit Size, mm	Decimal Size Equiv.	Overall Lg., mm	Max. Drilling Dp., mm	Flute Type	Type	Size, mm	Drill Bit Point Type	Mfr.		Each
Jobbers' Length







				Black Oxide

				4.5	0.1772"	80	38	High Helix	Round	4.5	Split	Dormer Pramet	30055A62	00000




						Uncoated

						4.5	0.1772"	80	38	Parabolic	Round	4.5	Split	Dormer Pramet	2754A27	0000

Left-Hand High-Speed Steel Drill Bits

Jobbers' Length

Round Shank

Standard

With flutes that spiral in the opposite direction of other bits, these are primarily used to remove stripped screws. Choose a bit that’s slightly smaller than the diameter of the screw’s head. Set your power tool to rotate in reverse. Slowly drill in the center of the screw head, maintaining constant pressure. As the bit penetrates, it will catch onto the screw and reverse it out of the hole. If the screw is badly stripped, you might need to punch a starter hole. Also known as reverse-flute bits. High-speed steel is the versatile choice for drilling most metals.

Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.

Black Oxide—The dark finish increases wear resistance and reduces friction to improve chip flow, so these bits can last 50% longer than uncoated bits.

					Shank					Each
	Drill Bit Size, mm	Decimal Size Equiv.	Overall Lg., mm	Max. Drilling Dp., mm	Type	Size	Drill Bit Point Type	Mfr.		1-9	10-Up
Jobbers' Length







				Black Oxide

				4.5	0.1772"	80	38	Round	4.5 mm	Standard	Dormer Pramet	29855A58	000000	000000

Diamond-Coated Router Bits for Composites

With a diamond coating, these bits resist wear when used on abrasive materials, making them last about 50 times longer than uncoated bits. Their sharp cutting edges and flute shapes are specifically designed to cut through tough materials such as composites with minimal resistance. This means less strain on your router and more control when cutting, leading to a smooth cut. Bits are made of solid carbide for longer tool life and faster cutting speeds than high-speed steel.

Diamond-Coated Carbide


Drill/Mill Cut Style—Plunge-Cut	Drill/Mill Cut Style—Plunge-Cut, Straight Flutes

Drill/Mill Cut Style—Bits with a drill/mill cut style have a pointed end for easier plunge cuts than square-cut bits.

Plunge Cut—Plunge-cutting bits let you cut directly into the workpiece from above. Other bits are best for operations where the peripheral teeth do most of the work such as trimming, contouring, and finishing.

Straight Flutes—Bits with straight flutes are for general purpose use. They quickly remove material, leaving a rough finish.

	Overall Lg., mm	No. of Flutes	For Tool Type	For Use On	Mfr.		Each
Drill/Mill Cut Style—Plunge-Cut







	Straight Flutes

	10	30	10	80	12	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N35	0000000

Carbide Square End Mills for Honeycomb Panels

6 Flutes

Cut into the sides and make slots in honeycomb panels without damaging any layers. Honeycomb panels are commonly used in aerospace and automotive applications because they’re strong yet lightweight, but these same qualities make them difficult to machine. Unlike normal end mills, these have a left-hand helix and push material downward as they cut, preventing layers of the composite material from separating. The serrated edges break the honeycomb into small pieces, minimizing uncut fibers that can occur in composite material. A diamond coating on these end mills allows them to machine abrasive material, such as carbon fiber, fiberglass, and graphite.

They have a square end for milling square-bottomed slots, pockets, and edges. All are center cutting, allowing plunge cuts into a surface. They are good for long production runs. They run twice as fast as other carbide end mills and last up to 30 times longer.

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.

	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	Mfr.		Each
Diamond-Coated Carbide







				6 Flutes

				8	-0.02 to 0.08	8	24	80	Equal	15°	Carbon Fiber, Fiberglass, Graphite	Center Cutting	Square	Seco	8388N12	0000000

Reamers for Taper-Pin Holes

Shape holes to match the profile of taper pins. After drilling a hole that matches the size of the small end of the taper pin you want to install, use these reamers to taper and finish the hole.

Square Shank

Straight Flute

Turn these reamers by hand with an adjustable wrench, straight-handle tap wrench, or pin vise (sold separately).

Straight Flute—The most common flute style, these reamers are suitable for a wide range of applications, but not recommended for holes with a keyway or other breaks in the surface.

High-Speed Steel—Durable and wear resistant, these are good for general purpose reaming in most materials.

						Lg., mm
	For Taper Pin No.	Reamer Dia. (A), mm	Reamer Dia. (B), mm	Material	Square Shank Size, mm	Flute	Overall	No. of Flutes	Cutting Dia. Tolerance, mm	Rate of Taper	For Use On	Mfr.		Each
Straight Flute







				Metric

				3 mm	4.0600	2.9000	High-Speed Steel	3.2	58	80	4	0 to 0.075	1:50	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Dormer Pramet	30165A63	000000

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







				2 Flutes

				8	-0.001" to 0.000"	8	8	80	Equal	15°	Hardened Steel, Iron, Tool Steel	Center Cutting	Ball	Seco	8942A35	0000000

Fast-Cut Carbide Square End Mills with Chamfer Corner

5 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.

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.

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







Titanium Aluminum Nitride (TiAlN)-Coated Carbide—5 Flutes

10	10	20	80	0.1	45°	Variable	45°	Stainless Steel, Titanium	Center Cutting	Guhring	8207A515	000000

Fast-Cut Roughing Carbide Square End Mills

4 Flutes

Remove large amounts of material quickly without sacrificing tool life. Variable spacing between flutes reduces cutting time and vibration in high-volume jobs.

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.

Titanium Aluminum Nitride (TiAlN)-Coated Carbide—End mills with a titanium aluminum nitride (TiAlN) coating and end mills with an aluminum titanium nitride (AlTiN) coating 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.

4 Flutes—End mills with four flutes have better chip clearance than end mills with five flutes, so they’re often used for high-volume, high-speed plunge, slotting, and roughing cuts. Serrations along the cutting edge act as chip breakers, so these end mills can remove large amounts of material at high 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 Pitch	Flute Spacing	Helix Angle	For Use On	End Mill Type	Cut Style	Mfr.		Each
Titanium Aluminum Nitride (TiAlN)-Coated Carbide







				4 Flutes

				10	-0.058 to 0.000	10	30	80	Coarse	Variable	30° to 32°	Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Square	Guhring	8581A109	0000000

Fast-Cut Carbide Barrel End Mills


Barrel 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. Also known as barrel cutters, these end mills create the smooth finish of a ball end mill, but with a tapered cutting surface that removes more material with each pass. They're ideal for 5-axis machining where you need to cut from many angles. Plus, compared to ball end mills, they move farther between overlapping passes (stepover), which decreases machining time and tool wear, so they’ll last longer. 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. A titanium aluminum silicon nitride (TiAlSiN) coating makes them extremely resistant to wear and diffusion because they have especially high hardness, even at high temperatures.

	Mill, mm
	Dia.	Dia. Tolerance	Max. Taper Dia., mm	Shank Dia., mm	Lg. of Cut, mm	Overall Lg., mm	Flute Spacing	Helix Angle	For Use On	End Mill Type	Cut Style	Mfr.		Each
Titanium Aluminum Silicon Nitride (TiAlSiN)-Coated Carbide







				4 Flutes

				1.5	-0.01 to 0.01	4	8	10.5	80	Variable	10° to 43°	Brass, Bronze, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Barrel	Kyocera	8410N13	0000000


				2	-0.01 to 0.01	4	8	9.5	80	Variable	10° to 43°	Brass, Bronze, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Barrel	Kyocera	8410N14	000000

Fast-Cut Carbide Barrel End Mills for Aluminum, Brass, and Bronze


Barrel Cut Style	3 Flutes

A titanium diboride (TiB2) coating reduces friction when working with nonferrous metals, so you can use these end mills to cut soft metals like aluminum, brass, and bronze. Variable spacing between the flutes reduces vibration, allowing these end mills to provide fast cuts, smooth finishes, and long tool life. Also known as barrel cutters, these end mills create the smooth finish of a ball end mill, but with a tapered cutting surface that removes more material with each pass. They're ideal for 5-axis machining where you need to cut from many angles. Plus, compared to ball end mills, they move farther between overlapping passes (stepover), which decreases machining time and tool wear, so they’ll last longer. All are center cutting, allowing plunge cuts into a surface.

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

	Mill, mm
	Dia.	Dia. Tolerance	Max. Taper Dia., mm	Shank Dia., mm	Lg. of Cut, mm	Overall Lg., mm	Flute Spacing	Helix Angle	For Use On	End Mill Type	Cut Style	Mfr.		Each
Titanium Diboride (TiB2)-Coated Carbide







				3 Flutes

				1.5	-0.01 to 0.01	4	8	10	80	Variable	15° to 55°	Aluminum, Brass, Bronze	Center Cutting	Barrel	Kyocera	8202N103	0000000


				2	-0.01 to 0.01	4	8	9	80	Variable	15° to 55°	Aluminum, Brass, Bronze	Center Cutting	Barrel	Kyocera	8202N104	000000

Miniature Carbide Rounded-Edge Square End Mills


Rounded-Edge-Square Cut Style	2 Flutes

With a mill diameter of 3 mm or less, these end mills are great for precise, detailed work such as in electronics, mold making, and medical-device manufacturing. Often used for slotting and pocketing cuts in mold and die making, these end mills have a 90° profile and rounded corners, which reduce flute breakage and chipping. Also known as corner radius end mills. 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.

An aluminum chromium nitride (AlCrN) coating provides excellent resistance to wear, high temperatures, and oxidation—even at high speeds. Great for difficult-to-machine materials like stainless steel, titanium, and tool steel.

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

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







				2 Flutes

				1.2	-0.013 to 0	6	1.15	24	1.8	0.1	80	Equal	30°	Aluminum, Brass, Bronze, Copper, Hardened Steel, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Rounded-Edge Square	Seco	8471N63	0000000


				1.5	-0.013 to 0	6	1.45	30	2.3	0.15	80	Equal	30°	Aluminum, Brass, Bronze, Copper, Hardened Steel, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Rounded-Edge Square	Seco	8471N68	000000
				2	-0.013 to 0	6	1.94	30	3	0.15	80	Equal	30°	Aluminum, Brass, Bronze, Copper, Hardened Steel, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Rounded-Edge Square	Seco	8471N74	000000
				2	-0.013 to 0	6	1.94	40	3	0.15	80	Equal	30°	Aluminum, Brass, Bronze, Copper, Hardened Steel, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	Rounded-Edge Square	Seco	8471N75	000000

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.

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

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







				3 Flutes

				1/2°	2	-0.0508 to 0.0508	2.3	10	20	80	Equal	Aluminum, Brass, Bronze, Copper, Fiberglass, Iron, Plastic, Steel	Noncenter Cutting	Tapered	Award Cutter	8147N118	000000


				2°	6	-0.0508 to 0.0508	8.1	10	30	80	Equal	Aluminum, Brass, Bronze, Copper, Fiberglass, Iron, Plastic, Steel	Center Cutting	Tapered	Award Cutter	8147N317	00000
				15°	3	-0.0508 to 0.0508	16.4	12	25	80	Equal	Aluminum, Brass, Bronze, Copper, Fiberglass, Iron, Plastic, Steel	Center Cutting	Tapered	Award Cutter	8147N764	00000
				15°	6	-0.0508 to 0.0508	19.4	12	25	80	Equal	Aluminum, Brass, Bronze, Copper, Fiberglass, Iron, Plastic, Steel	Center Cutting	Tapered	Award Cutter	8147N765	00000


				Titanium Nitride (TiN)-Coated Cobalt Steel







								3 Flutes

								1/2°	2	-0.0508 to 0.0508	2.3	10	20	80	Equal	Aluminum, Brass, Bronze, Copper, Fiberglass, Iron, Plastic, Steel	Noncenter Cutting	Tapered	Award Cutter	8296N118	00000


								2°	6	-0.0508 to 0.0508	8.1	10	30	80	Equal	Aluminum, Brass, Bronze, Copper, Fiberglass, Iron, Plastic, Steel	Center Cutting	Tapered	Award Cutter	8296N317	00000
								15°	3	-0.0508 to 0.0508	16.4	12	25	80	Equal	Aluminum, Brass, Bronze, Copper, Fiberglass, Iron, Plastic, Steel	Center Cutting	Tapered	Award Cutter	8296N764	00000
								15°	6	-0.0508 to 0.0508	19.4	12	25	80	Equal	Aluminum, Brass, Bronze, Copper, Fiberglass, Iron, Plastic, Steel	Center Cutting	Tapered	Award Cutter	8296N765	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.

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

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







				3 Flutes

				1/2°	2	-0.0508 to 0.0508	2.3	10	20	80	Equal	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Noncenter Cutting	Tapered	Award Cutter	8936A111	000000


				2°	6	-0.0508 to 0.0508	8.1	10	30	80	Equal	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Tapered	Award Cutter	8936A117	00000
				15°	3	-0.0508 to 0.0508	16.4	12	25	80	Equal	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Tapered	Award Cutter	8936A126	00000
				15°	6	-0.0508 to 0.0508	19.4	12	25	80	Equal	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Tapered	Award Cutter	8936A127	00000


				Titanium Nitride (TiN)-Coated High-Speed Steel







								3 Flutes

								1/2°	2	-0.0508 to 0.0508	2.3	10	20	80	Equal	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Noncenter Cutting	Tapered	Award Cutter	8045N18	00000


								2°	6	-0.0508 to 0.0508	8.1	10	30	80	Equal	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Tapered	Award Cutter	8045N39	00000
								15°	3	-0.0508 to 0.0508	16.4	12	25	80	Equal	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Tapered	Award Cutter	8045N84	00000
								15°	6	-0.0508 to 0.0508	19.4	12	25	80	Equal	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Center Cutting	Tapered	Award Cutter	8045N85	00000