2 1⁄2" Diameter End Mill Insert Holders

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Mill Diameter

Cut Style

For Use On

Shank Type

Number of Inserts Required

Overall Length

1 9/16"

5 7/8"

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Material

REACH

RoHS

DFARS Specialty Metals

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Export Control Classification Number (ECCN)

EAR99

Finish

Aluminum Oxide Coated

Aluminum Titanium Chromium Nitride (AlTiCrN) Coated

Black Oxide

Diamondlike Carbon (DLC) Coated

Titanium Diboride (TiB₂) Coated

Titanium Nitride (TiN) Coated

Component

Thickness

Rake Angle Type

Hole Diameter

Length

Number of Cutting Edges

Tip Radius

Cutting Edge Length

Coating Process

CVD (Chemical Vapor Deposition)

PVD (Physical Vapor Deposition)

Inscribed Circle Diameter (IC)

Insert Width

Arbor Hole Diameter

Cut Type

57 Products

Replaceable Carbide-Insert Square End Mill Holders for Manual Milling Machines


Square Cut Style	End Mill Body Shown with Inserts (Sold Separately)

Use these tools with low-horsepower, manual milling machines. They have clamps for holding inserts that do not have a mounting hole. Replaceable carbide-insert end mills reduce waste and cost in high-volume jobs—when the cutting edges dull, replace the carbide inserts instead of the entire tool. End mills have a square cut style for milling square slots, pockets, and edges. All are noncenter-cutting for operations where the sides of the teeth do most of the work, such as shoulder milling, contouring, and finishing. They cannot be used for plunge cuts.

R8 Taper Shank—R8-shank end mills have internal threads on the tapered end for connecting to a drawbar.

		Shank Thread
	Mill Dia.	Gender	Size	Overall Lg.	No. of Inserts Req.	Cut Style	Material	End Mill Type		Each
R8 Taper Shank



		2 1/2"	Female	7/16"-20	5 7/8"	5	Square	Black-Oxide Steel	Noncenter Cutting	8902A56	0000000

Accessories and Replacements for End Mill Insert Holders

End Mill Inserts

Titanium Nitride (TiN)-Coated Carbide—Carbide inserts have a wear-resistant titanium-nitride (TiN) coating.

						Each		Package
	Tip Radius	Insert Code	Insert Size	Thk.	For Use On		Each	Pkg. Qty.		Pkg.
Titanium Nitride (TiN)-Coated Carbide



		1/64"	TPG-321	3/8"	1/8"	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	7376A171	000000	10	7376A255	000000


		1/32"	TPG-322	3/8"	1/8"	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	7376A172	00000	10	7376A357	00000
		3/64"	TPG-323	3/8"	1/8"	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	7376A193	00000	10	7376A52	00000
		1/16"	TPG-324	3/8"	1/8"	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	7376A194	00000	10	7376A573	00000

		Each
Replacement Clamp Screw	8902A65	00000
Replacement Hold-Down Clamp	8902A64	00000

Carbide Inserts for Replaceable Carbide-Insert Face Milling Cutters

Individual Carbide

Insert Case

Image of Product. Front orientation. Face Mill Inserts. Carbide Inserts for Replaceable Carbide-Insert Face Milling Cutters.

Image of Attribute. Front orientation. Contains Annotated, MultipleImages. Carbide Inserts for Replaceable Carbide-Insert Face Milling Cutters.

Pair these carbide inserts with insert holders to mill the surface of plates and bars. They have a negative rake, so they have cutting edges on both sides—they last longer than comparable positive-rake inserts. As each edge dulls, you can rotate to a fresh one. When all the edges on one side are worn, flip the insert over. Built-in chip breakers prevent long chips from forming, so they won’t block the flow of coolant or damage your tool.

Inserts sold individually come packed in a clear plastic case to protect cutting edges during shipment. Inserts sold in packs come factory sealed from the manufacturer for maximum traceability.

	For Mill Dia.	IC Dia.	Cutting Edge Lg.	Thk.	Hole Dia.	No. of Cutting Edges	Tip Radius	Rake Angle Type	Pkg. Qty.		Pkg.
Aluminum Titanium Chromium Nitride (AlTiCrN)-Coated Carbide



	Cast Iron	1 1/2", 2", 2 1/2", 3", 4", 5"	0.579"	0.58"	1/4"	7/32"	8	1/16"	Negative	1	8339N127	000000


	Cast Iron	1 1/2", 2", 2 1/2", 3", 4", 5"	0.579"	0.58"	1/4"	7/32"	8	1/16"	Negative	10	8339N123	000000
	Hardened Steel, Steel	1 1/2", 2", 2 1/2", 3", 4", 5"	0.579"	0.58"	1/4"	7/32"	8	1/32"	Negative	1	8339N125	00000
	Hardened Steel, Steel	1 1/2", 2", 2 1/2", 3", 4", 5"	0.579"	0.58"	1/4"	7/32"	8	1/32"	Negative	10	8339N121	000000
	Stainless Steel, Titanium	1 1/2", 2", 2 1/2", 3", 4", 5"	0.579"	0.58"	1/4"	7/32"	8	1/32"	Negative	1	8339N126	00000
	Stainless Steel, Titanium	1 1/2", 2", 2 1/2", 3", 4", 5"	0.579"	0.58"	1/4"	7/32"	8	1/32"	Negative	10	8339N122	000000


	Diamondlike Carbon (DLC)-Coated Carbide



			Aluminum, Brass, Bronze, Copper, Plastic	1 1/2", 2", 2 1/2", 3", 4", 5"	0.579"	0.58"	1/4"	7/32"	8	1/32"	Negative	1	8339N128	00000


			Aluminum, Brass, Bronze, Copper, Plastic	1 1/2", 2", 2 1/2", 3", 4", 5"	0.579"	0.58"	1/4"	7/32"	8	1/32"	Negative	10	8339N124	000000

Insert Holders


	Shank Mount Shown with Inserts (Sold Separately)	Arbor Mount Shown with Inserts (Sold Separately)

	Mill
	Dia.	Thk.	Arbor Hole Dia.	Keyway Wd.	Shank Dia.	Helix Angle	No. of Inserts Req.	Material	Rake Angle Type		Each
Shank Mount







				Coarse Grit

				1 1/2"	1 9/16"	—	—	1 1/4"	45°	2	Nickel-Plated Steel	Negative	9165N137	0000000


				1 1/2"	1 9/16"	—	—	1 1/4"	45°	3	Nickel-Plated Steel	Negative	9165N138	000000
				2"	1 9/16"	—	—	1 1/4"	45°	3	Nickel-Plated Steel	Negative	9165N139	000000
				2 1/2"	1 9/16"	—	—	1 1/4"	45°	4	Nickel-Plated Steel	Negative	9165N141	000000


				Arbor Mount







								Coarse Grit

								2"	1 9/16"	3/4"	0.313"	—	45°	3	Nickel-Plated Steel	Negative	9165N121	000000


								2 1/2"	1 9/16"	3/4"	0.313"	—	45°	4	Nickel-Plated Steel	Negative	9165N124	000000
								3"	1 31/32"	1"	0.382"	—	45°	5	Nickel-Plated Steel	Negative	9165N127	000000
								4"	1 31/32"	1 1/2"	0.626"	—	45°	5	Nickel-Plated Steel	Negative	9165N131	000000
								5"	2 15/32"	1 1/2"	0.626"	—	45°	6	Nickel-Plated Steel	Negative	9165N134	000000




										Fine Grit

										2"	1 9/16"	3/4"	0.313"	—	45°	4	Nickel-Plated Steel	Negative	9165N122	000000


										2 1/2"	1 9/16"	3/4"	0.313"	—	45°	5	Nickel-Plated Steel	Negative	9165N125	000000
										3"	1 31/32"	1"	0.382"	—	45°	6	Nickel-Plated Steel	Negative	9165N129	000000
										4"	1 31/32"	1 1/2"	0.626"	—	45°	8	Nickel-Plated Steel	Negative	9165N133	000000
										5"	2 15/32"	1 1/2"	0.626"	—	45°	10	Nickel-Plated Steel	Negative	9165N136	00000000




												Extra-Fine Grit

												2"	1 9/16"	3/4"	0.313"	—	45°	5	Nickel-Plated Steel	Negative	9165N123	000000


												2 1/2"	1 9/16"	3/4"	0.313"	—	45°	6	Nickel-Plated Steel	Negative	9165N126	000000
												3"	1 31/32"	1"	0.382"	—	45°	8	Nickel-Plated Steel	Negative	9165N128	000000
												4"	1 31/32"	1 1/2"	0.626"	—	45°	10	Nickel-Plated Steel	Negative	9165N132	00000000
												5"	2 15/32"	1 1/2"	0.626"	—	45°	13	Nickel-Plated Steel	Negative	9165N135	00000000

Replaceable Carbide-Insert Square End Mill Holders

Square Cut Style

Pair carbide inserts with a holder to create end mills that reduce waste and cost in high-volume jobs. When the cutting edges dull, replace the inserts instead of the entire tool. These end mills are also known as indexable shoulder mills. All are noncenter cutting for operations where the sides of the teeth do most of the work, such as shoulder milling, contouring, and finishing. They can’t be used for plunge cuts. They have a square cut style for creating square slots, pockets, flat surfaces, and edges.

When choosing an end mill holder, consider the type of finish you want. The finer the finish, the more inserts you’ll need. More inserts mean tighter spacing, so you can machine at high speeds and remove material quickly while leaving a smooth surface. However, you’ll also need more machine power. Fewer inserts mean a coarser finish—the inserts are spaced apart to help with chip evacuation. A coarse finish is best for roughing applications, light machining, and cutting soft metals such as aluminum.

Arbor Mount

Arbor Mount Shown

with Inserts (Sold

Separately)

For arbor mount holders, you’ll need four or more negative-rake-angle inserts. Since the inserts have cutting edges on both sides, they last longer than positive-rake inserts. When all the edges on one side are dull, flip the insert over. These holders have a hole that passes coolant from your machine onto the workpiece, minimizing heat.

Insert Holders											Replacement Insert Screws
Mill Dia.	Arbor Hole Dia.	Keyway Wd.	Overall Lg.	No. of Inserts Req.	Cut Style	Material	End Mill Type	Features		Each	Pkg. Qty.		Pkg.







			Fine Grit

			2 1/2"	3/4"	0.322"	1 9/16"	5	Square	Steel	Noncenter Cutting	Coolant Holes	2913N21	0000000	10	2913N29	000000


			2 1/2"	3/4"	0.322"	1 9/16"	7	Square	Steel	Noncenter Cutting	Coolant Holes	2913N22	000000	10	2913N29	00000

End Mill Inserts


8 Cutting Edges	Individual Carbide Insert Case	End Mill Inserts

Choose inserts that match the holder's mount type and the material you want to cut. Inserts sold individually come packed in a clear plastic case to protect cutting edges during shipment. Inserts sold in packs come factory sealed from the manufacturer for maximum traceability.

Aluminum Oxide-Coated Carbide, Titanium Diboride (TiB2)-Coated Carbide, and Titanium Nitride (TiN)-Coated Carbide—Coated inserts are used for demanding, high-speed jobs in hard material. They’re harder and more wear resistant than uncoated carbide inserts.

										Each		Package
	For Mill Dia.	Tip Radius	Cutting Edge Lg.	Insert Wd.	Thk.	Hole Dia.	No. of Cutting Edges	Rake Angle Type	Finished Material		Each	Pkg. Qty.		Pkg.
For Arbor Holder Mounts







				For Aluminum, Brass, Bronze, Copper, Nickel, Stainless Steel, and Steel

				2", 2 1/2", 3", 4"	1/32"	0.46"	0.472"	7/32"	3/16"	8	Negative	Titanium Nitride (TiN)-Coated Carbide	3094N35	000000	5	3094N31	0000000


				2", 2 1/2", 3", 4"	1/16"	0.46"	0.472"	7/32"	3/16"	8	Negative	Titanium Nitride (TiN)-Coated Carbide	3094N38	00000	5	3094N34	000000




						For Cast Iron

						2", 2 1/2", 3", 4"	1/32"	0.46"	0.472"	7/32"	3/16"	8	Negative	Aluminum Oxide-Coated Carbide	3094N37	00000	5	3094N33	000000




								For Aluminum

								2", 2 1/2", 3", 4"	1/32"	0.46"	0.472"	7/32"	3/16"	8	Negative	Titanium Diboride (TiB2)-Coated Carbide	3094N36	00000	5	3094N32	000000

Carbide End Mill Inserts for Replaceable Carbide-Insert Square End Mills


Individual Carbide Insert Case	8 Cutting Edges

Coated inserts are best for demanding, high-speed jobs and hard materials. They’re harder and more wear resistant than uncoated carbide inserts.

Pair these carbide inserts with a holder to create end mills that reduce waste and cost in high-volume jobs. When all the cutting edges dull, replace the inserts instead of the entire tool.

Choose inserts with a smaller tip radius to reduce vibration and create smaller chips, so chip evacuation is easier. Choose inserts with a larger tip radius for more aggressive machining—they have a stronger cutting edge, so they remove more material with each pass.

Inserts sold individually come packed in a clear plastic case to protect cutting edges during shipment. Inserts sold in packs come factory sealed from the manufacturer for maximum traceability.

Use uncoated inserts for general purpose milling and short production runs.

Negative Rake Angle—Negative-rake angle inserts have cutting edges on both sides, so they last longer than positive-rake inserts. When all the edges on one side are dull, flip the insert over.

												Each		Package
	For Mill Dia.	For Mfr.	For Mfr. Series	Tip Radius	Cutting Edge Lg.	Insert Wd.	Thk.	Hole Dia.	No. of Cutting Edges	Rake Angle Type	Material		Each	Pkg. Qty.		Pkg.
For Arbor Holder Mounts







				For Aluminum, Brass, Bronze, Copper, Nickel, Stainless Steel, and Steel

				2", 2 1/2", 3", 4"	Widia	VSM890-12	1/32"	0.46"	0.472"	7/32"	3/16"	8	Negative	Titanium Nitride (TiN)-Coated Carbide	3094N35	000000	5	3094N31	0000000


				2", 2 1/2", 3", 4"	Widia	VSM890-12	1/16"	0.46"	0.472"	7/32"	3/16"	8	Negative	Titanium Nitride (TiN)-Coated Carbide	3094N38	00000	5	3094N34	000000




						For Cast Iron

						2", 2 1/2", 3", 4"	Widia	VSM890-12	1/32"	0.46"	0.472"	7/32"	3/16"	8	Negative	Aluminum Oxide-Coated Carbide	3094N37	00000	5	3094N33	000000




								For Aluminum

								2", 2 1/2", 3", 4"	Widia	VSM890-12	1/32"	0.46"	0.472"	7/32"	3/16"	8	Negative	Titanium Diboride (TiB2)-Coated Carbide	3094N36	00000	5	3094N32	000000

Insert Holders

	Overall Lg.	No. of Inserts Req.	Cut Style	Material	End Mill Type	Features		Each
Arbor Mount







	Coarse Grit

	2"	3/4"	0.322"	1 9/16"	4	Square	Steel	Noncenter Cutting	Coolant Holes	2913N18	0000000


	3"	1"	0.385"	1 3/4"	5	Square	Steel	Noncenter Cutting	Coolant Holes	2913N23	000000
	4"	1 1/2"	0.635"	2"	6	Square	Steel	Noncenter Cutting	Coolant Holes	2913N26	000000




			Fine Grit

			2"	3/4"	0.322"	1 9/16"	5	Square	Steel	Noncenter Cutting	Coolant Holes	2913N19	000000


			2 1/2"	3/4"	0.322"	1 9/16"	5	Square	Steel	Noncenter Cutting	Coolant Holes	2913N21	000000
			2 1/2"	3/4"	0.322"	1 9/16"	7	Square	Steel	Noncenter Cutting	Coolant Holes	2913N22	000000
			3"	1"	0.385"	1 3/4"	7	Square	Steel	Noncenter Cutting	Coolant Holes	2913N24	000000
			4"	1 1/2"	0.635"	2"	8	Square	Steel	Noncenter Cutting	Coolant Holes	2913N27	000000




					Extra-Fine Grit

					3"	1"	0.385"	1 3/4"	9	Square	Steel	Noncenter Cutting	Coolant Holes	2913N25	000000


					4"	1 1/2"	0.635"	2"	11	Square	Steel	Noncenter Cutting	Coolant Holes	2913N28	000000