High-Speed Steel Square End Mills
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.
Use uncoated end mills for general purpose milling and short production runs. 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 end mills allow plunge cuts into a surface. 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.
For technical drawings and 3-D models, click on a part number.
| Mill Dia. | Shank Dia. | Lg. of Cut | O'all Lg. | Flute Spacing | Helix Angle | For Use On | End Mill Type | Each | |
Uncoated | |||||||||
|---|---|---|---|---|---|---|---|---|---|
2 Flute | |||||||||
| 1 3/4" | 3/4" | 1 1/2" | 3 7/8" | Equal | 30° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Center Cutting | 00000000 | 0000000 |
| 1 3/4" | 1 1/4" | 1 5/8" | 4 1/8" | Equal | 30° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Center Cutting | 00000000 | 000000 |
6 Flute | |||||||||
| 1 3/4" | 3/4" | 1 1/2" | 3 7/8" | Equal | 30° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Noncenter Cutting | 0000000 | 000000 |
| 1 3/4" | 3/4" | 2" | 4 1/4" | Equal | 30° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Noncenter Cutting | 00000000 | 000000 |
| 1 3/4" | 1 1/4" | 2" | 4 1/2" | Equal | 30° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Noncenter Cutting | 0000000 | 000000 |
Titanium Nitride (TiN) Coated | |||||||||
2 Flute | |||||||||
| 1 3/4" | 3/4" | 1 1/2" | 3 7/8" | Equal | 30° | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Tool Steel | Center Cutting | 00000000 | 000000 |
| 1 3/4" | 1 1/4" | 1 5/8" | 4 1/8" | Equal | 30° | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Tool Steel | Center Cutting | 00000000 | 000000 |
Replaceable Carbide-Insert End Mills for Manual Milling Machines
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.
| Tip Radius | Insert Code | Insert Size | Thick. | For Use On | Each | |
Titanium Nitride (TiN) Coated | ||||||
|---|---|---|---|---|---|---|
| 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 |
High-Speed Steel Convex-Radius End Mills
Use these end mills for general purpose work in most material, such as aluminum, brass, bronze, iron, and steel. With curved, side-cutting teeth, they create grooves.
Neck | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Cut Radius | Mill Dia. | Shank Dia. | Dia. | Lg. | Lg. of Cut | Overall Lg. | Flute Spacing | For Use On | Each | |
Uncoated | ||||||||||
| 3/8" | 1 3/4" | 3/4" | 5/8" | 1/2" | 3/4" | 4" | Equal | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 0000000 |
Gear Cutters
Also known as involute gear cutters, these tools work with a milling machine to create 14½° pressure angle spur gears. If worn, they can be sharpened and used again.
To select a gear cutter, follow these steps:
1. Determine the pitch of the gear you're cutting. Gear pitch = (No. of Teeth + 2) / OD. Round to the nearest whole number.
2. Select the cutter that matches your gear's pitch and number of teeth.
Mill | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Number of Gear Teeth | Cutter Trade Number | Thick. | Dia. | Arbor Hole Dia. | Keyway Wd. | Material | For Use On | Each | |
For 24 Gear Pitch  | |||||||||
| 55-134 | 2 | 0.217" | 1 3/4" | 7/8" | 0.125" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 000000 |
| 35-54 | 3 | 0.217" | 1 3/4" | 7/8" | 0.125" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 26-34 | 4 | 0.217" | 1 3/4" | 7/8" | 0.125" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 21-25 | 5 | 0.217" | 1 3/4" | 7/8" | 0.125" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 17-20 | 6 | 0.217" | 1 3/4" | 7/8" | 0.125" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 12-13 | 8 | 0.217" | 1 3/4" | 7/8" | 0.125" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
For 32 Gear Pitch | |||||||||
| 135 and Up | 1 | 0.236" | 1 3/4" | 7/8" | 0.125" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 55-134 | 2 | 0.236" | 1 3/4" | 7/8" | 0.125" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 26-34 | 4 | 0.236" | 1 3/4" | 7/8" | 0.125" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 17-20 | 6 | 0.236" | 1 3/4" | 7/8" | 0.125" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 14-16 | 7 | 0.236" | 1 3/4" | 7/8" | 0.125" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 12-13 | 8 | 0.236" | 1 3/4" | 7/8" | 0.125" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
For 48 Gear Pitch | |||||||||
| 135 and Up | 1 | 0.236" | 1 3/4" | 7/8" | 0.125" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 55-134 | 2 | 0.236" | 1 3/4" | 7/8" | 0.125" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 35-54 | 3 | 0.236" | 1 3/4" | 7/8" | 0.125" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 26-34 | 4 | 0.236" | 1 3/4" | 7/8" | 0.125" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 21-25 | 5 | 0.236" | 1 3/4" | 7/8" | 0.125" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 17-20 | 6 | 0.236" | 1 3/4" | 7/8" | 0.125" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 14-16 | 7 | 0.236" | 1 3/4" | 7/8" | 0.125" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 12-13 | 8 | 0.236" | 1 3/4" | 7/8" | 0.125" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |