Carbide Square End Mills



For longer tool life and a better finish in general purpose milling applications, these solid carbide end mills are harder, stronger, and more wear resistant than high-speed steel and cobalt steel end mills. 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. 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. 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. They’re 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. Titanium-aluminum-nitride (TiAlN) 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.
Center-cutting end mills allow plunge cuts into a surface.
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 | |||||||||
20mm | 20mm | 38mm | 100mm | Equal | 30° | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | Center Cutting | 0000000 | 0000000 |
3 Flute | |||||||||
20mm | 20mm | 38mm | 100mm | Equal | 30° | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | Center Cutting | 0000000 | 000000 |
4 Flute | |||||||||
20mm | 20mm | 38mm | 100mm | Equal | 30° | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | Center Cutting | 00000000 | 000000 |
Mill Dia. | Shank Dia. | Lg. of Cut | O'all Lg. | Flute Spacing | Helix Angle | For Use On | End Mill Type | Each | |
Titanium Nitride (TiN) Coated | |||||||||
---|---|---|---|---|---|---|---|---|---|
2 Flute | |||||||||
20mm | 20mm | 38mm | 100mm | Equal | 30° | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | Center Cutting | 00000000 | 0000000 |
3 Flute | |||||||||
20mm | 20mm | 38mm | 100mm | Equal | 30° | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | Center Cutting | 00000000 | 000000 |
4 Flute | |||||||||
20mm | 20mm | 38mm | 100mm | Equal | 30° | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | Center Cutting | 00000000 | 000000 |
Mill Dia. | Shank Dia. | Lg. of Cut | O'all Lg. | Flute Spacing | Helix Angle | For Use On | End Mill Type | Each | |
Titanium Carbonitride (TiCN) Coated | |||||||||
---|---|---|---|---|---|---|---|---|---|
2 Flute | |||||||||
20mm | 20mm | 38mm | 100mm | Equal | 30° | Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Stainless Steel, Steel | Center Cutting | 00000000 | 0000000 |
3 Flute | |||||||||
20mm | 20mm | 38mm | 100mm | Equal | 30° | Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Stainless Steel, Steel | Center Cutting | 00000000 | 000000 |
4 Flute | |||||||||
20mm | 20mm | 38mm | 100mm | Equal | 30° | Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Stainless Steel, Steel | Center Cutting | 00000000 | 000000 |
Mill Dia. | Shank Dia. | Lg. of Cut | O'all Lg. | Flute Spacing | Helix Angle | For Use On | End Mill Type | Each | |
Titanium Aluminum Nitride (TiAlN) Coated | |||||||||
---|---|---|---|---|---|---|---|---|---|
2 Flute | |||||||||
20mm | 20mm | 38mm | 100mm | Equal | 30° | Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | Center Cutting | 00000000 | 0000000 |
3 Flute | |||||||||
20mm | 20mm | 38mm | 100mm | Equal | 30° | Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | Center Cutting | 00000000 | 000000 |
4 Flute | |||||||||
20mm | 20mm | 38mm | 100mm | Equal | 30° | Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | Center Cutting | 00000000 | 000000 |
Fast-Cutting Carbide Square End Mills
![]() Square Cut Style | ![]() 4 Flute |
![]() 6 Flute | |
![]() 7 Flute | ![]() 11 Flute |
Variable spacing between the flutes reduces vibration, allowing these end mills to provide fast cuts, smooth finishes, and long tool life on hard materials. 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. They have a square end for milling square-bottomed slots, pockets, and edges.
A titanium-aluminum-nitride (TiAlN) or aluminum-titanium-nitride (AlTiN) coating allows them to 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. Aluminum-titanium-nitride (AlTiN) has a higher percentage of aluminum than titanium-aluminum-nitride (TiAlN).
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.
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 | Overall Lg. | Flute Spacing | Helix Angle | For Use On | End Mill Type | Each | |
End Mills | |||||||||
---|---|---|---|---|---|---|---|---|---|
Titanium Aluminum Nitride (TiAlN) Coated—4 Flute | |||||||||
20mm | 20mm | 38mm | 104mm | Variable | 35°-38° | Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | Center Cutting | 00000000 | 0000000 |
Aluminum Titanium Nitride (AlTiN) Coated—6 Flute | |||||||||
20mm | 20mm | 38mm | 104mm | Variable | 41° | Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | Center Cutting | 00000000 | 000000 |
Aluminum Titanium Nitride (AlTiN) Coated—7 Flute | |||||||||
20mm | 20mm | 38mm | 104mm | Variable | 40° | Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | Noncenter Cutting | 0000000 | 000000 |
Aluminum Titanium Nitride (AlTiN) Coated—11 Flute | |||||||||
20mm | 20mm | 38mm | 104mm | Variable | 38° | Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | Noncenter Cutting | 0000000 | 000000 |
Fast-Cutting Carbide Square End Mills with Chamfer Corner



A 45° corner chamfer improves cutting edge strength, so these end mills last longer than standard square end mills when milling hard material; however they do not create as sharp of a corner. Variable spacing between the flutes reduces vibration, allowing these end mills to provide fast cuts, smooth finishes, and long tool life on hard materials. They have a square end for milling square-bottomed slots, pockets, and edges. All are center cutting, allowing plunge cuts into a surface.
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.
Titanium-aluminum-nitride (TiAlN) and 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. Titanium-aluminum-silicon-nitride (TiAlSiN) coated end mills are extremely resistant to wear and diffusion because they have especially high hardness, even at high temperatures.
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.
End mills with coolant holes allow coolant to run through the tool and directly to the cutting edge to help flush out chips. Use them in CNC machines with coolant-through technology.
For technical drawings and 3-D models, click on a part number.
Mill Dia. | Shank Dia. | Lg. of Cut | Overall Lg. | Chamfer Wd. | Corner Cutting Angle | Flute Spacing | Helix Angle | No. of Coolant Holes | For Use On | End Mill Type | Each | |
End Mills | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Aluminum Titanium Nitride (AlTiN) Coated—4 Flute | ||||||||||||
20mm | 20mm | 38mm | 104mm | 0.5mm | 45° | Variable | 38° | __ | Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | Center Cutting | 00000000 | 0000000 |
Titanium Aluminum Silicon Nitride (TiAISiN) Coated—3 Flute | ||||||||||||
20mm | 20mm | 38mm | 104mm | 0.24mm | 45° | Variable | 41°-45° | __ | Iron, Nickel, Stainless Steel, Steel, Titanium | Center Cutting | 00000000 | 000000 |
Titanium Aluminum Silicon Nitride (TiAISiN) Coated—4 Flute | ||||||||||||
20mm | 20mm | 38mm | 104mm | 0.2mm | 45° | Variable | 36°-38° | __ | Iron, Nickel, Stainless Steel, Steel, Titanium | Center Cutting | 00000000 | 000000 |
End Mills with Coolant Holes | ||||||||||||
Titanium Aluminum Silicon Nitride (TiAISiN) Coated—4 Flute | ||||||||||||
20mm | 20mm | 38mm | 104mm | 0.2mm | 45° | Variable | 36°-38° | 4 | Iron, Nickel, Stainless Steel, Steel, Titanium | Center Cutting | 00000000 | 000000 |
Roughing Carbide Square End Mills

Serrations along the cutting edge act as chip breakers, so these end mills can remove large amounts of material at high speeds. Made of solid carbide, they 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. They have a square end for milling square slots, pockets, and edges. All are center cutting, allowing plunge cuts into a surface.
Titanium-nitride (TiN) coated end mills have good wear resistance. Titanium-aluminum-nitride (TiAlN) 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. | Shank Dia. | Lg. of Cut | O'all Lg. | Flute Pitch | Flute Spacing | Helix Angle | For Use On | End Mill Type | Each | |
Titanium Nitride (TiN) Coated | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
4 Flute | ||||||||||
20mm | 20mm | 38mm | 100mm | Coarse | Equal | 30° | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | Center Cutting | 000000000 | 0000000 |
Titanium Aluminum Nitride (TiAlN) Coated | ||||||||||
4 Flute | ||||||||||
20mm | 20mm | 38mm | 100mm | Coarse | Equal | 30° | Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | Center Cutting | 000000000 | 000000 |
Long-Reach Fast-Cutting Carbide Square End Mills


These end mills have a neck that’s extended and has a reduced diameter—this prevents them from rubbing against your workpiece when deep milling. Variable spacing between the flutes reduces vibration, allowing the end mills to provide fast cuts, smooth finishes, and long tool life on hard materials. They have a square end for milling square-bottomed slots, pockets, and edges. All are center cutting, allowing plunge cuts into a surface.
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.
An aluminum-titanium-nitride (AlTiN) coating allows them to 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.
Neck | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Mill Dia. | Shank Dia. | Dia. | Lg. | Lg. of Cut | Overall Lg. | Flute Spacing | Helix Angle | For Use On | End Mill Type | Each | |
Aluminum Titanium Nitride (AlTiN) Coated | |||||||||||
6 Flute | |||||||||||
20mm | 20mm | 19mm | 56mm | 24mm | 150mm | Variable | 41° | Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | Center Cutting | 00000000 | 0000000 |
Fast-Cutting Roughing Carbide Square End Mills with Chamfer Corner

Serrations along the cutting edge act as chip breakers, so these end mills can remove large amounts of material at high speeds without sacrificing tool life. Variable spacing between the flutes reduces vibration, also allowing these end mills to provide fast cuts. A 45° corner chamfer improves cutting edge strength, so these end mills last longer than standard square end mills when milling hard material; however they do not create as sharp of a corner. With a high helix angle and wear-resistant titanium-aluminum-nitride (TiAlN) coating, these end mills provide excellent shearing and chip removal in stainless steel and titanium. They have a square end for milling square-bottomed slots, pockets, and edges. All are center cutting, allowing plunge cuts into a surface.
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.
For technical drawings and 3-D models, click on a part number.
Mill Dia. | Shank Dia. | Lg. of Cut | O'all Lg. | Chamfer Wd. | Corner Cutting Angle | Flute Pitch | Flute Spacing | Helix Angle | For Use On | End Mill Type | Each | |
Titanium Aluminum Nitride (TiAlN) Coated | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
4 Flute | ||||||||||||
20mm | 20mm | 38mm | 104mm | 0.5mm | 45° | Coarse | Variable | 36°-38° | Iron, Stainless Steel, Steel, Titanium | Center Cutting | 00000000 | 0000000 |
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.
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 | |||||||||
20mm | 19mm | 38.1mm | 95mm | Equal | 30° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Center Cutting | 0000000 | 000000 |
4 Flute | |||||||||
20mm | 15.9mm | 47.6mm | 102mm | Equal | 30° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Center Cutting | 0000000 | 00000 |
Titanium Nitride (TiN) Coated | |||||||||
2 Flute | |||||||||
20mm | 19mm | 38.1mm | 95mm | Equal | 30° | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Tool Steel | Center Cutting | 0000000 | 00000 |
Roughing High-Speed Steel Square End Mills

Serrations along the cutting edge act as chip breakers, so these end mills can remove large amounts of material at high speeds. They are high-speed steel for general purpose milling in most material, such as aluminum, brass, bronze, iron, and steel. Their square end makes them good for milling square slots 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.
Center-cutting end mills allow plunge cuts into a surface.
For technical drawings and 3-D models, click on a part number.
Mill Dia. | Shank Dia. | Lg. of Cut | O'all Lg. | Flute Pitch | Flute Spacing | Helix Angle | For Use On | End Mill Type | Each | |
Uncoated | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
4 Flute | ||||||||||
20mm | 20mm | 38mm | 104mm | Fine | Equal | 30° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Center Cutting | 00000000 | 000000 |
Cobalt Steel Square End Mills with Two Milling Ends

When one end wears out, switch to the opposite end for two times the life of a standard cobalt steel end mill. With better heat and wear resistance than high-speed steel, these cobalt steel end mills can run at higher speeds and provide better performance on hard material, such as iron, hardened steel, titanium, and tool steel. Their square ends make them good for milling square slots, pockets, and edges. All are center cutting, allowing plunge cuts into a surface.
End mills with four flutes provide a finer finish and operate with less vibration when run at high speeds.
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 | |||||||||
---|---|---|---|---|---|---|---|---|---|
4 Flute | |||||||||
20mm | 22.2mm | 47.6mm | 156mm | Equal | 30° | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | Center Cutting | 0000000 | 0000000 |
Carbide Ball End Mills
![]() Ball Cut Style | ![]() 2 Flute |
![]() 4 Flute |
For longer tool life and a better finish in general purpose milling applications, these solid carbide end mills are harder, stronger, and more wear resistant than high-speed steel and cobalt steel end mills. 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. They have a ball end for milling rounded slots, slopes, and contours. All are center cutting, allowing plunge cuts into a surface.
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.
For technical drawings and 3-D models, click on a part number.
Mill Dia. | Shank Dia. | Lg. of Cut | Overall Lg. | Flute Spacing | Helix Angle | For Use On | End Mill Type | Each | |
Uncoated | |||||||||
---|---|---|---|---|---|---|---|---|---|
2 Flute | |||||||||
20mm | 20mm | 38mm | 100mm | Equal | 30° | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | Center Cutting | 00000000 | 0000000 |
Mill Dia. | Shank Dia. | Lg. of Cut | Overall Lg. | Flute Spacing | Helix Angle | For Use On | End Mill Type | Each | |
Uncoated | |||||||||
---|---|---|---|---|---|---|---|---|---|
4 Flute | |||||||||
20mm | 20mm | 38mm | 100mm | Equal | 30° | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | Center Cutting | 00000000 | 0000000 |
Fast-Cutting Carbide Ball End Mills


Variable spacing between the flutes reduces vibration, allowing these end mills to provide fast cuts, smooth finishes, and long tool life on hard materials. 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. They have a ball end for milling rounded slots, slopes, and contours. All are center cutting, allowing plunge cuts into a surface.
A titanium-aluminum-nitride (TiAlN) or aluminum-titanium-nitride (AlTiN) coating allows them to 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.
End mills with four flutes provide better chip clearance for high-volume, high-speed plunge, slotting, and roughing cuts; end mills with six flutes provide a finer finish and operate with less vibration when run at high speeds.
For technical drawings and 3-D models, click on a part number.
Mill Dia. | Shank Dia. | Lg. of Cut | Overall Lg. | Flute Spacing | Helix Angle | Max. Ramping Angle | For Use On | End Mill Type | Each | |
End Mills | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Aluminum Titanium Nitride (AlTiN) Coated—6 Flute | ||||||||||
20mm | 20mm | 38mm | 104mm | Variable | 36° | 3° | Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | Center Cutting | 00000000 | 0000000 |
Long-Reach Carbide Ball End Mills for Mold Making



These end mills have an extended neck with a reduced diameter that prevents them from rubbing against your workpiece when deep milling. Also known as runner cutters, they cut channels with precise angles and dimensions, reducing the need for additional finishing. They have a ball end for milling rounded slots, slopes, and contours. All are center cutting, allowing plunge cuts into a surface.
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.
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.
For technical drawings and 3-D models, click on a part number.
Neck | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Mill Dia. | Shank Dia. | Dia. | Lg. | Lg. of Cut | Overall Lg. | Flute Spacing | Helix Angle | For Use On | End Mill Type | Each | |
Uncoated | |||||||||||
3 Flute | |||||||||||
20mm | 20mm | 19.5mm | 62mm | 38mm | 150mm | Equal | 30° | Aluminum, Brass, Bronze, Copper, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | Center Cutting | 0000000 | 0000000 |
Aluminum Titanium Nitride (AlTiN) Coated | |||||||||||
2 Flute | |||||||||||
20mm | 20mm | 19.5mm | 62mm | 38mm | 150mm | Equal | 30° | Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | Center Cutting | 0000000 | 000000 |
3 Flute | |||||||||||
20mm | 20mm | 19.5mm | 62mm | 38mm | 150mm | Equal | 30° | Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool Steel | Center Cutting | 0000000 | 000000 |
Fast-Cutting Carbide Rounded-Edge Square End Mills



Variable spacing between the flutes reduces vibration, allowing these end mills to provide fast cuts, smooth finishes, and long tool life on hard materials. Often used for slotting and pocketing cuts in mold and die making, these end mills have a 90° profile and rounded corners, which reduce flute breakage and chipping. Also known as corner radius end mills.
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.
A titanium-aluminum-nitride (TiAlN) or aluminum-titanium-nitride (AlTiN) coating allows them to 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.
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.
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.
End mills with coolant holes allow coolant to run through the tool and directly to the cutting edge to help flush out chips. Use them in CNC machines with coolant-through technology.
For technical drawings and 3-D models, click on a part number.
Mill Dia. | Shank Dia. | Lg. of Cut | Corner Cut Radius | Overall Lg. | Flute Spacing | Helix Angle | Max. Ramping Angle | No. of Coolant Holes | For Use On | End Mill Type | Each | |
End Mills with Coolant Holes | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Aluminum Titanium Nitride (AlTiN) Coated—5 Flute | ||||||||||||
20mm | 20mm | 23mm | 1mm | 92mm | Variable | 37° | 7° | 1 | Hardened Steel, Iron, Stainless Steel, Steel, Titanium, Tool Steel | Noncenter Cutting | 00000000 | 0000000 |
20mm | 20mm | 43mm | 1mm | 104mm | Variable | 37° | 7° | 1 | Hardened Steel, Iron, Stainless Steel, Steel, Titanium, Tool Steel | Noncenter Cutting | 00000000 | 000000 |
20mm | 20mm | 43mm | 1.5mm | 104mm | Variable | 37° | 7° | 1 | Hardened Steel, Iron, Stainless Steel, Steel, Titanium, Tool Steel | Noncenter Cutting | 00000000 | 000000 |
20mm | 20mm | 43mm | 2mm | 104mm | Variable | 37° | 7° | 1 | Hardened Steel, Iron, Stainless Steel, Steel, Titanium, Tool Steel | Noncenter Cutting | 00000000 | 000000 |
20mm | 20mm | 43mm | 2.5mm | 104mm | Variable | 37° | 7° | 1 | Hardened Steel, Iron, Stainless Steel, Steel, Titanium, Tool Steel | Noncenter Cutting | 00000000 | 000000 |
20mm | 20mm | 43mm | 3mm | 104mm | Variable | 37° | 7° | 1 | Hardened Steel, Iron, Stainless Steel, Steel, Titanium, Tool Steel | Noncenter Cutting | 00000000 | 000000 |
20mm | 20mm | 43mm | 4mm | 104mm | Variable | 37° | 7° | 1 | Hardened Steel, Iron, Stainless Steel, Steel, Titanium, Tool Steel | Noncenter Cutting | 00000000 | 000000 |
20mm | 20mm | 43mm | 5mm | 104mm | Variable | 37° | 7° | 1 | Hardened Steel, Iron, Stainless Steel, Steel, Titanium, Tool Steel | Noncenter Cutting | 00000000 | 000000 |
Carbide Rounded-Edge Square End Mills for Aluminum, Brass, and Bronze


With a diamondlike coating (DLC), these end mills are sharp enough to cut aluminum, brass, and bronze. Often used for slotting and pocketing cuts in mold and die making, they have a 90° profile and rounded corners, which reduce flute breakage and chipping. Also known as corner radius end mills. All are center cutting, allowing plunge cuts into a surface.
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.
For technical drawings and 3-D models, click on a part number.
Mill Dia. | Shank Dia. | Lg. of Cut | Corner Cut Radius | Overall Lg. | Flute Spacing | Helix Angle | For Use On | End Mill Type | Each | |
Diamondlike Carbon (DLC) Coated | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
3 Flute | ||||||||||
20mm | 20mm | 100mm | 1mm | 160mm | Equal | 35° | Aluminum, Brass, Bronze, Copper | Center Cutting | 0000000 | 0000000 |
20mm | 20mm | 100mm | 1.5mm | 160mm | Equal | 35° | Aluminum, Brass, Bronze, Copper | Center Cutting | 0000000 | 000000 |
20mm | 20mm | 100mm | 3mm | 160mm | Equal | 35° | Aluminum, Brass, Bronze, Copper | Center Cutting | 0000000 | 000000 |
20mm | 20mm | 100mm | 4mm | 160mm | Equal | 35° | Aluminum, Brass, Bronze, Copper | Center Cutting | 0000000 | 000000 |
20mm | 20mm | 100mm | 5mm | 160mm | Equal | 35° | Aluminum, Brass, Bronze, Copper | Center Cutting | 0000000 | 000000 |