1 7/8" End Mills | McMaster-Carr

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Carbide-Tipped High-Speed Steel

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20 Products

High-Speed Steel Square End Mills

6 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.

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

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







				6 Flutes

				1 7/8"	0.000" to 0.001"	1 1/4"	2"	4 1/2"	Equal	30°	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	Noncenter Cutting	Square	Brubaker Tool	3052A39	0000000

High-Speed Steel Dovetail End Mills


Dovetail Cut Style

Use these versatile end mills for milling in most material, including aluminum, brass, bronze, iron, and steel. They create dovetail slots for connecting two components with a sliding fit.

Uncoated High-Speed Steel—Uncoated end mills are 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—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 High-Speed Steel—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.

Aluminum Titanium Nitride (ALTiN)-Coated High-Speed Steel— 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	Thk.	Shank Dia.	Overall Lg.	For Use On	Cut Style	Mfr.		Each
Uncoated High-Speed Steel







				45° Chamfer

				1 7/8"	-0.010" to 0.010"	1/2"	7/8"	3 1/4"	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Dovetail	Whitney Tool	2984A13	0000000




						60° Chamfer

						1 7/8"	-0.010" to 0.010"	13/16"	7/8"	3 1/4"	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Dovetail	Whitney Tool	2984A24	000000


						Titanium Nitride (TiN)-Coated High-Speed Steel







										45° Chamfer

										1 7/8"	-0.010" to 0.010"	1/2"	7/8"	3 1/4"	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Dovetail	Whitney Tool	8187N19	000000




												60° Chamfer

												1 7/8"	-0.010" to 0.010"	13/16"	7/8"	3 1/4"	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Dovetail	Whitney Tool	8187N39	000000


												Titanium Carbon Nitride (TiCN)-Coated High-Speed Steel







																45° Chamfer

																1 7/8"	-0.010" to 0.010"	1/2"	7/8"	3 1/4"	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Dovetail	Whitney Tool	8236N19	000000




																		60° Chamfer

																		1 7/8"	-0.010" to 0.010"	13/16"	7/8"	3 1/4"	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Dovetail	Whitney Tool	8236N39	000000


																		Aluminum Titanium Nitride (ALTiN)-Coated High-Speed Steel







																				45° Chamfer

		1 7/8"																		-0.010" to 0.010"	1/2"	7/8"	3 1/4"	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Dovetail	Whitney Tool	8344N19	000000




																				60° Chamfer

				1 7/8"																-0.010" to 0.010"	13/16"	7/8"	3 1/4"	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Dovetail	Whitney Tool	8344N39	000000

Cobalt Steel Corner-Rounding End Mills


Corner-Rounding Cut Style

With better heat and wear resistance than high-speed steel, these cobalt steel end mills run at higher speeds and provide better performance on hard material. They have scooped corners for rounding the sharp edges of your workpiece.

	Shank Dia.	Overall Lg.	Flute Spacing	For Use On	Cut Style	Mfr.		Each
Uncoated Cobalt Steel







	4 Flutes

	5/8"	9/16"	1 7/8"	3/4"	4"	Equal	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Corner Rounding	Keo	2790A83	0000000

Cobalt Steel Dovetail End Mills


Dovetail Cut Style

With better heat and wear resistance than high-speed steel, these cobalt steel dovetail cutters run at higher speeds and provide better performance on hard material. Use them to create dovetail slots for connecting two components with a sliding fit.

	Mill
	Dia.	Dia. Tolerance	Thk.	Shank Dia.	Overall Lg.	For Use On	Cut Style	Mfr.		Each
Uncoated Cobalt Steel







				45° Chamfer

				1 7/8"	-0.010" to 0.010"	1/2"	7/8"	3 1/4"	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Dovetail	Whitney Tool	2984A65	0000000




						60° Chamfer

						1 7/8"	-0.010" to 0.010"	13/16"	7/8"	3 1/4"	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Dovetail	Whitney Tool	2984A75	000000

Carbide-Tipped Double-Chamfering End Mills


Double-Chamfering Cut Style

Made of carbide-tipped high-speed steel, these end mills provide a sharper, harder edge at high temperatures than plain high-speed steel. Because they aren’t as brittle as solid carbide, they can be used in less rigid setups, such as manual milling machines. The teeth are angled in two directions so you can make top and bottom chamfers without having to flip the workpiece.

Uncoated—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—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—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.

Aluminum Titanium Nitride (AlTiN) Coated—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. 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.	Thk.	Shank Dia.	Lg. of Cut	Overall Lg.	For Use On	Cut Style	Mfr.		Each
Uncoated







				60° Cutting Angle

				1 7/8"	5/8"	3/4"	5/8"	3 25/32"	Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Double Chamfering	Whitney Tool	5115N103	0000000




						90° Cutting Angle

						1 7/8"	5/8"	3/4"	5/8"	3 25/32"	Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Double Chamfering	Whitney Tool	5115N107	000000


						Titanium Nitride (TiN) Coated







										60° Cutting Angle

										1 7/8"	5/8"	3/4"	5/8"	3 25/32"	Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Double Chamfering	Whitney Tool	5115N114	000000




												90° Cutting Angle

												1 7/8"	5/8"	3/4"	5/8"	3 25/32"	Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Double Chamfering	Whitney Tool	5115N121	000000


												Titanium Carbon Nitride (TiCN) Coated







																60° Cutting Angle

																1 7/8"	5/8"	3/4"	5/8"	3 25/32"	Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Double Chamfering	Whitney Tool	5115N127	000000




																		90° Cutting Angle

																		1 7/8"	5/8"	3/4"	5/8"	3 25/32"	Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Double Chamfering	Whitney Tool	5115N134	000000


																		Aluminum Titanium Nitride (AlTiN) Coated







																				60° Cutting Angle

		1 7/8"																		5/8"	3/4"	5/8"	3 25/32"	Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Double Chamfering	Whitney Tool	5115N141	000000




																				90° Cutting Angle

				1 7/8"																5/8"	3/4"	5/8"	3 25/32"	Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel	Double Chamfering	Whitney Tool	5115N147	000000