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 3/8" | 3/4" | 3/4" | 3" | Equal | 30° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Center Cutting | 0000000 | 0000000 |
| 1 3/8" | 3/4" | 1 1/2" | 3 7/8" | Equal | 30° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Center Cutting | 00000000 | 000000 |
| 1 3/8" | 1" | 1 5/8" | 4 1/8" | Equal | 30° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Center Cutting | 0000000 | 000000 |
6 Flute | |||||||||
| 1 3/8" | 5/8" | 3/4" | 2 7/8" | Equal | 30° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Noncenter Cutting | 0000000 | 000000 |
| 1 3/8" | 3/4" | 3/4" | 3" | Equal | 30° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Noncenter Cutting | 0000000 | 000000 |
| 1 3/8" | 3/4" | 1 1/2" | 3 7/8" | Equal | 30° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Noncenter Cutting | 00000000 | 000000 |
| 1 3/8" | 3/4" | 1 1/2" | 3 7/8" | Equal | 30° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Noncenter Cutting | 0000000 | 000000 |
| 1 3/8" | 1" | 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 3/8" | 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 3/8" | 1" | 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.
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 Corner-Rounding End Mills
Use these versatile end mills for milling in most material, including aluminum, brass, bronze, iron, and steel. They have scooped corners for rounding the sharp edges of your workpiece.
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. 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-nitride (TiN) coated end mills create less friction than uncoated end mills, which means they last longer when run at similar speeds. 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.
For technical drawings and 3-D models, click on a part number.
| Cut Radius | Tip Dia. | Mill Dia. | Shank Dia. | Overall Lg. | Flute Spacing | For Use On | Each | |
Uncoated | ||||||||
|---|---|---|---|---|---|---|---|---|
4 Flute | ||||||||
| 7/16" | 3/8" | 1 3/8" | 3/4" | 3 3/4" | Equal | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 0000000 |
| 7/16" | 3/8" | 1 3/8" | 1" | 4" | Equal | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Titanium Nitride (TiN) Coated | ||||||||
4 Flute | ||||||||
| 7/16" | 3/8" | 1 3/8" | 3/4" | 3 3/4" | Equal | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 7/16" | 3/8" | 1 3/8" | 1" | 4" | Equal | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Aluminum Titanium Nitride (AlTiN) Coated | ||||||||
4 Flute | ||||||||
| 7/16" | 3/8" | 1 3/8" | 3/4" | 3 3/4" | Equal | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 7/16" | 3/8" | 1 3/8" | 1" | 4" | Equal | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Cobalt Steel Corner-Rounding End Mills
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.
For technical drawings and 3-D models, click on a part number.
| Cut Radius | Tip Dia. | Mill Dia. | Shank Dia. | Overall Lg. | Flute Spacing | For Use On | Each | |
Uncoated | ||||||||
|---|---|---|---|---|---|---|---|---|
4 Flute | ||||||||
| 7/16" | 3/8" | 1 3/8" | 3/4" | 3 3/4" | Equal | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 0000000 |
High-Speed Steel Double-Chamfer End Mills
Use these end mills for general purpose work in most material, such as aluminum, brass, bronze, iron, and steel. The teeth are angled in two directions so you can make top and bottom chamfers without having to flip the workpiece.
For technical drawings and 3-D models, click on a part number.
Carbide-Tipped Double-Chamfer End Mills
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.
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. 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-nitride (TiN) coated end mills create less friction than uncoated end mills, which means they last longer when run at similar speeds. Titanium-carbonitride (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. 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.
For technical drawings and 3-D models, click on a part number.
Mill | |||||||
|---|---|---|---|---|---|---|---|
| Dia. | Thick. | Shank Dia. | Lg. of Cut | Overall Lg. | For Use On | Each | |
Uncoated | |||||||
60° Cutting Angle | |||||||
| 1 3/8" | 7/16" | 5/8" | 7/16" | 3 7/32" | Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 0000000 |
90° Cutting Angle | |||||||
| 1 3/8" | 1/2" | 5/8" | 1/2" | 3 9/32" | Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
Titanium Nitride (TiN) Coated | |||||||
60° Cutting Angle | |||||||
| 1 3/8" | 7/16" | 5/8" | 7/16" | 3 7/32" | Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
90° Cutting Angle | |||||||
| 1 3/8" | 1/2" | 5/8" | 1/2" | 3 9/32" | Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
Titanium Carbonitride (TiCN) Coated | |||||||
60° Cutting Angle | |||||||
| 1 3/8" | 7/16" | 5/8" | 7/16" | 3 7/32" | Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
90° Cutting Angle | |||||||
| 1 3/8" | 1/2" | 5/8" | 1/2" | 3 9/32" | Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
Aluminum Titanium Nitride (AlTiN) Coated | |||||||
60° Cutting Angle | |||||||
| 1 3/8" | 7/16" | 5/8" | 7/16" | 3 7/32" | Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
90° Cutting Angle | |||||||
| 1 3/8" | 1/2" | 5/8" | 1/2" | 3 9/32" | Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
High-Speed Steel Dovetail End Mills
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 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. 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-nitride (TiN) coated end mills create less friction than uncoated end mills, which means they last longer when run at similar speeds. Titanium-carbonitride (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. 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.
For technical drawings and 3-D models, click on a part number.
Mill | ||||||
|---|---|---|---|---|---|---|
| Dia. | Thick. | Shank Dia. | O'all Lg. | For Use On | Each | |
Uncoated | ||||||
45° Chamfer Angle | ||||||
| 1 3/8" | 3/8" | 5/8" | 2 7/8" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 0000000 |
60° Chamfer Angle | ||||||
| 1 3/8" | 9/16" | 5/8" | 2 7/8" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |
Titanium Nitride (TiN) Coated | ||||||
45° Chamfer Angle | ||||||
| 1 3/8" | 3/8" | 5/8" | 2 7/8" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |
60° Chamfer Angle | ||||||
| 1 3/8" | 9/16" | 5/8" | 2 7/8" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |
Titanium Carbonitride (TiCN) Coated | ||||||
45° Chamfer Angle | ||||||
| 1 3/8" | 3/8" | 5/8" | 2 7/8" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |
60° Chamfer Angle | ||||||
| 1 3/8" | 9/16" | 5/8" | 2 7/8" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |
Aluminum Titanium Nitride (AlTiN) Coated | ||||||
45° Chamfer Angle | ||||||
| 1 3/8" | 3/8" | 5/8" | 2 7/8" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |
60° Chamfer Angle | ||||||
| 1 3/8" | 9/16" | 5/8" | 2 7/8" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |
Cobalt Steel Dovetail End Mills
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.
For technical drawings and 3-D models, click on a part number.
Mill | ||||||
|---|---|---|---|---|---|---|
| Dia. | Thick. | Shank Dia. | Overall Lg. | For Use On | Each | |
Uncoated | ||||||
45° Chamfer Angle | ||||||
| 1 3/8" | 3/8" | 5/8" | 2 7/8" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 0000000 |
60° Chamfer Angle | ||||||
| 1 3/8" | 9/16" | 5/8" | 2 7/8" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |
High-Speed Steel Keyseat End Mills
Use these end mills for general purpose keyseat cutting in a wide range of material, including aluminum, iron, and steel. They mill precise notches in rotary shafts to fit machine keys and can also be used for slot milling.
For technical drawings and 3-D models, click on a part number.
Mill | Neck | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Dia. | Thick. | Shank Dia. | Dia. | Lg. | Overall Lg. | For Woodruff ANSI Key No. | For Use On | Each | |
| 1 3/8" | 1/4" | 1/2" | 0.4" | 3/8" | 2 1/4" | 811 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 1 3/8" | 5/16" | 1/2" | 0.47" | 3/8" | 2 5/16" | 1011 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 1 3/8" | 3/8" | 1/2" | 0.47" | 3/8" | 2 3/8" | 1211 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
Carbide Keyseat End Mills
Made of solid carbide, these cutters 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. Use them to mill precise notches in rotary shafts to fit machine keys. They can also be used for slot milling.
For technical drawings and 3-D models, click on a part number.
Mill | Neck | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Dia. | Thick. | Shank Dia. | Dia. | Lg. | Overall Lg. | For Woodruff ANSI Key No. | For Use On | Each | |
| 1 3/8" | 3/8" | 1/2" | 0.47" | 3/8" | 2 3/8" | 1211 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 0000000 |
Fast-Cutting Carbide Keyseat End Mills
Get speed and longevity when cutting keyseats with these carbide end mills that have staggered teeth. The alternating right- and left-hand tooth style removes more material at high speeds than straight-tooth keyseat cutters. They mill precise notches in rotary shafts to fit machine keys and can also be used for slot milling. 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.
Use uncoated end mills for general purpose milling and short production runs. They will stay sharper than coated end mills and leave a better finish on soft materials like aluminum. Use aluminum-titanium-nitride (AlTiN) 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. They 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.
For technical drawings and 3-D models, click on a part number.
Mill | Neck | |||||||
|---|---|---|---|---|---|---|---|---|
| Dia. | Thick. | Shank Dia. | Dia. | Lg. | Overall Lg. | For Use On | Each | |
Uncoated | ||||||||
| 1 3/8" | 1/8" | 1/2" | 0.28" | 1/4" | 2 3/4" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 0000000 |
| 1 3/8" | 3/16" | 1/2" | 0.4" | 1/4" | 2 1/2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |
| 1 3/8" | 1/4" | 1/2" | 0.4" | 1/4" | 2 1/2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |
| 1 3/8" | 5/16" | 1/2" | 0.47" | 1/4" | 2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |
| 1 3/8" | 3/8" | 1/2" | 0.47" | 1/4" | 2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |
Aluminum Titanium Nitride (AlTiN) Coated | ||||||||
| 1 3/8" | 1/8" | 1/2" | 0.28" | 1/4" | 2 3/4" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
| 1 3/8" | 3/16" | 1/2" | 0.4" | 1/4" | 2 1/2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
| 1 3/8" | 1/4" | 1/2" | 0.4" | 1/4" | 2 1/2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
| 1 3/8" | 5/16" | 1/2" | 0.47" | 1/4" | 2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
| 1 3/8" | 3/8" | 1/2" | 0.47" | 1/4" | 2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
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 | ||||||||||
| 3/16" | 1 3/8" | 3/4" | 5/8" | 1/2" | 3/8" | 3 1/2" | Equal | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 0000000 |
Fly Cutters
Shave shallow layers of material off your workpiece to create a smooth even finish. These fly cutters hold a lathe tool (sold separately) and run on your milling machine. Compared to end mills, these make a wider cut per pass. They also generate less heat, so you can run them at higher speeds. In the long run, these cutters will save you the cost of replacing entire end mills once they dull—you can either sharpen your worn lathe tool or just replace that one part.
For technical drawings and 3-D models, click on a part number.