R8 Taper Shank End Mills

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15 Products

Replaceable Carbide-Insert End Mills for Manual Milling Machines

Square Cut Style

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

Carbide inserts have a wear-resistant titanium-nitride (TiN) coating.

End Mills

End Mill Body Shown with Inserts (Sold Separately)

	Shank Thread
Mill Dia.	Gender	Size	Overall Lg.	Cut Style	Material	Number of Inserts Required	End Mill Type		Each
R8 Taper Shank
1"	Female	7/16"-20	5 7/8"	Square	Black-Oxide Steel	1	Noncenter Cutting	0000000	0000000
1 1/4"	Female	7/16"-20	5 7/8"	Square	Black-Oxide Steel	2	Noncenter Cutting	0000000	000000
1 1/2"	Female	7/16"-20	5 7/8"	Square	Black-Oxide Steel	3	Noncenter Cutting	0000000	000000
1 5/8"	Female	7/16"-20	5 7/8"	Square	Black-Oxide Steel	3	Noncenter Cutting	0000000	000000
1 3/4"	Female	7/16"-20	5 7/8"	Square	Black-Oxide Steel	3	Noncenter Cutting	0000000	000000
2"	Female	7/16"-20	5 7/8"	Square	Black-Oxide Steel	3	Noncenter Cutting	0000000	000000
2 1/2"	Female	7/16"-20	5 7/8"	Square	Black-Oxide Steel	5	Noncenter Cutting	0000000	000000
3"	Female	7/16"-20	5 7/8"	Square	Black-Oxide Steel	5	Noncenter Cutting	0000000	000000

Replacement Hold-Down Clamp	0000000	Each	000000
Replacement Clamp Screws	0000000	Each	0000

Carbide Inserts

Carbide Insert

Titanium Nitride (TiN) Coated
Tip Radius	Insert Code	Insert Size	Thick.	For Use On		Each
1/64"	TPG-321	3/8"	1/8"	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	00000000	000000
1/32"	TPG-322	3/8"	1/8"	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	00000000	00000
3/64"	TPG-323	3/8"	1/8"	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	00000000	00000
1/16"	TPG-324	3/8"	1/8"	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	00000000	00000

Fly Cutters

Flat-Surface Cut Style

Fly cutters clamp onto tool blanks (sold separately) to machine flat surfaces. As the cutter rotates, the tool blank creates a wide, shallow cut on the face of the workpiece. An alternative to face milling cutters for intermittent and light duty use, these cutters allow you to remove and hand-sharpen the tool blank when it becomes worn.

For technical drawings and 3-D models, click on a part number.

	Shank Thread			For Tool Bit Shank
Mill Dia.	Gender	Size	Overall Lg.	Wd.	Shape	Ht.	Head Dia.	Material	Heat Treatment		Each
R8 Taper Shank
2 1/2"	Female	7/16"-20	5 3/4"	5/16"	Square	5/16"	2 1/2"	Black-Oxide Steel	Hardened	0000000	000000