McMaster-Carr logo
    Filter by
    System of Measurement
    Number of Flutes
    Material
    Number of Milling Ends
    Sold As
    Shank Type
    Flute Spacing
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Flute Type
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    Neck Diameter
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    48 Products

    Carbide Square End Mills

    Image of Product. Front orientation. End Mills. Carbide Square End Mills, 2 Flutes.
    Image of Product. Front orientation. End Mills. Carbide Square End Mills, 3 Flutes.
    Image of Product. Front orientation. End Mills. Carbide Square End Mills, 4 Flutes.

    2 Flutes

    3 Flutes

    4 Flutes

    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.
    Uncoated Carbide—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.
    Titanium Nitride (TiN)-Coated Carbide—Titanium nitride (TiN)-coated end mills create less friction than uncoated end mills, which means they last longer when run at similar speeds. 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 Carbon Nitride (TiCN)-Coated Carbide—Titanium carbon nitride (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. 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 Aluminum Nitride (TiAlN)-Coated Carbide—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. 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.
    Center Cutting—Center-cutting end mills allow plunge cuts into a surface.
    Mill, mm
    Dia.
    Dia. Tolerance
    Shank Dia.,
    mm
    Lg. of
    Cut, mm
    Overall
    Lg., mm
    Flute
    Spacing
    Helix
    Angle
    For Use On
    End Mill Type
    Cut
    Style
    Each
    Uncoated Carbide
     
    2 Flutes
    20-0.0510 to 0.00002038100Equal30°Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingSquare8940A440000000
     
    3 Flutes
    20-0.0510 to 0.00002038100Equal30°Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingSquare8945A44000000
     
    4 Flutes
    20-0.0510 to 0.00002038100Equal30°Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingSquare29605A37000000
     
    Titanium Nitride (TiN)-Coated Carbide
     
    2 Flutes
    20-0.0510 to 0.00002038100Equal30°Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingSquare8866A441000000
     
    3 Flutes
    20-0.0510 to 0.00002038100Equal30°Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingSquare8931A441000000
     
    4 Flutes
    20-0.0510 to 0.00002038100Equal30°Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingSquare8780A441000000
     
    Titanium Carbon Nitride (TiCN)-Coated Carbide
     
    2 Flutes
    20-0.0510 to 0.00002038100Equal30°Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Stainless Steel, SteelCenter CuttingSquare8866A442000000
     
    3 Flutes
    20-0.0510 to 0.00002038100Equal30°Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Stainless Steel, SteelCenter CuttingSquare8931A442000000
     
    4 Flutes
    20-0.0510 to 0.00002038100Equal30°Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Stainless Steel, SteelCenter CuttingSquare8780A442000000
     
    Titanium Aluminum Nitride (TiAlN)-Coated Carbide
     
    2 Flutes
    20-0.0510 to 0.00002038100Equal30°Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingSquare8866A443000000
     
    3 Flutes
    20-0.0510 to 0.00002038100Equal30°Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingSquare8931A443000000
     
    4 Flutes
    20-0.0510 to 0.00002038100Equal30°Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingSquare8780A443000000
     

    High-Speed Steel Square End Mills

    Image of Product. Front orientation. End Mills. High-Speed Steel Square End Mills, 2 Flutes.

    2 Flutes

    Image of Product. Front orientation. End Mills. High-Speed Steel Square End Mills, 4 Flutes.

    4 Flutes

    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.
    Uncoated High-Speed Steel—Use uncoated end mills for general purpose milling and short production runs.
    Titanium Nitride (TiN)-Coated High-Speed Steel—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—Center-cutting end mills allow plunge cuts into a surface.
    Mill, mm
    Dia.
    Dia.
    Tolerance
    Shank Dia.,
    mm
    Lg. of
    Cut, mm
    Overall
    Lg., mm
    Flute
    Spacing
    Helix
    Angle
    For Use On
    End Mill Type
    Cut
    Style
    Each
    Uncoated High-Speed Steel
     
    2 Flutes
    200.000 to 0.0251938.195Equal30°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelCenter CuttingSquare8853A85000000
     
    4 Flutes
    200.000 to 0.03815.947.6102Equal30°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelCenter CuttingSquare8854A8300000
     
    Titanium Nitride (TiN)-Coated High-Speed Steel
     
    2 Flutes
    200.000 to 0.0251938.195Equal30°Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Tool SteelCenter CuttingSquare8694A3700000
     

    Carbide Rounded-Edge Square End Mills for Aluminum, Brass, and Bronze

    Image of ProductInUse. Rounded-Edge-Square Cut Style. Front orientation. Rounded-Edge-Square Cut Style. Carbide Rounded-Edge Square End Mills for Aluminum, Brass, and Bronze.
    Image of Product. Front orientation. End Mills. Carbide Rounded-Edge Square End Mills for Aluminum, Brass, and Bronze.

    Rounded-Edge-Square

    Cut Style

    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.
    Mill, mm
    Dia.
    Dia.
    Tolerance
    Shank Dia.,
    mm
    Lg. of
    Cut, mm
    Corner Cut
    Radius, mm
    Overall
    Lg., mm
    Flute
    Spacing
    Helix
    Angle
    For Use On
    End Mill Type
    Cut Style
    Each
    Diamondlike Carbon (DLC)-Coated Carbide
     
    3 Flutes
    20-0.02 to 0201001160Equal35°Aluminum, Brass, Bronze, CopperCenter CuttingRounded-Edge Square9149N170000000
    20-0.02 to 0201001.5160Equal35°Aluminum, Brass, Bronze, CopperCenter CuttingRounded-Edge Square9149N18000000
    20-0.02 to 0201003160Equal35°Aluminum, Brass, Bronze, CopperCenter CuttingRounded-Edge Square9149N19000000
    20-0.02 to 0201004160Equal35°Aluminum, Brass, Bronze, CopperCenter CuttingRounded-Edge Square9149N21000000
    20-0.02 to 0201005160Equal35°Aluminum, Brass, Bronze, CopperCenter CuttingRounded-Edge Square9149N22000000
     

    Fast-Cut Carbide Square End Mills

    Image of ProductInUse. Square Cut Style. Front orientation. Square Cut Style. Fast-Cut Carbide Square End Mills.

    Square Cut Style

    Image of Product. Front orientation. End Mills. Fast-Cut Carbide Square End Mills, 4 Flutes.

    4 Flutes

    Image of Product. 6 Flute. Front orientation. End Mills. Fast-Cut Carbide Square End Mills, 6 Flutes.

    6 Flute

    Image of Product. Front orientation. End Mills. Fast-Cut Carbide Square End Mills, 7 Flutes.

    7 Flutes

    Image of Product. Front orientation. End Mills. Fast-Cut Carbide Square End Mills, 11 Flutes.

    11 Flutes

    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.
    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.
    Aluminum Titanium Nitride (AlTiN)-Coated Carbide and Titanium Aluminum Nitride (TiAlN)-Coated Carbide—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).
    Center Cutting—Center-cutting end mills allow plunge cuts into a surface.
    Noncenter Cutting—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.
    Mill Dia.,
    mm
    Shank Dia.,
    mm
    Lg. of
    Cut, mm
    Overall
    Lg., mm
    Flute
    Spacing
    Helix
    Angle
    For Use On
    End Mill Type
    Cut
    Style
    Each
     
    Titanium Aluminum Nitride (TiAlN)-Coated Carbide—4 Flutes
    202038104Variable35° to 38°Iron, Nickel, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingSquare8745A6430000000
     
    Aluminum Titanium Nitride (AlTiN)-Coated Carbide—6 Flutes
    202038104Variable41°Iron, Nickel, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingSquare8745A787000000
     
    Aluminum Titanium Nitride (AlTiN)-Coated Carbide—7 Flutes
    202038104Variable40°Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool SteelNoncenter CuttingSquare4677N16000000
     
    Aluminum Titanium Nitride (AlTiN)-Coated Carbide—11 Flutes
    202038104Variable38°Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool SteelNoncenter CuttingSquare4677N21000000
     

    Fast-Cut Carbide Rounded-Edge Square End Mills

    Image of ProductInUse. Rounded-Edge-Square Cut Style. Front orientation. Rounded-Edge-Square Cut Style. Fast-Cut Carbide Rounded-Edge Square End Mills.

    Rounded-Edge-Square

    Cut Style

    Image of Product. Front orientation. End Mills. Fast-Cut Carbide Rounded-Edge Square End Mills, 5 Flutes.

    5 Flutes

    Image of Specification. End Mill with Coolant Hole. Side1 orientation. Contains Annotated. End Mills for Coolant Holes. Fast-Cut Carbide Rounded-Edge Square End Mills.

    End Mill with Coolant Hole

    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.
    End Mills for Coolant Holes—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.
    Noncenter Cutting—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.
    Mill Dia.,
    mm
    Shank Dia.,
    mm
    Lg. of
    Cut, mm
    Corner Cut
    Radius, mm
    Overall
    Lg., mm
    Flute
    Spacing
    Helix
    Angle
    Max. Ramping
    Angle
    No. of Coolant
    Holes
    For Use On
    End Mill Type
    Cut Style
    Each
    End Mills for Coolant Holes
     
    Aluminum Titanium Nitride (AlTiN)-Coated Carbide—5 Flutes
    202023192Variable37°7°1Hardened Steel, Iron, Stainless Steel, Steel, Titanium, Tool SteelNoncenter CuttingRounded-Edge Square6646N1640000000
    2020431104Variable37°7°1Hardened Steel, Iron, Stainless Steel, Steel, Titanium, Tool SteelNoncenter CuttingRounded-Edge Square6646N177000000
    2020431.5104Variable37°7°1Hardened Steel, Iron, Stainless Steel, Steel, Titanium, Tool SteelNoncenter CuttingRounded-Edge Square6646N172000000
    2020432104Variable37°7°1Hardened Steel, Iron, Stainless Steel, Steel, Titanium, Tool SteelNoncenter CuttingRounded-Edge Square6646N178000000
    2020432.5104Variable37°7°1Hardened Steel, Iron, Stainless Steel, Steel, Titanium, Tool SteelNoncenter CuttingRounded-Edge Square6646N173000000
    2020433104Variable37°7°1Hardened Steel, Iron, Stainless Steel, Steel, Titanium, Tool SteelNoncenter CuttingRounded-Edge Square6646N174000000
    2020434104Variable37°7°1Hardened Steel, Iron, Stainless Steel, Steel, Titanium, Tool SteelNoncenter CuttingRounded-Edge Square6646N175000000
    2020435104Variable37°7°1Hardened Steel, Iron, Stainless Steel, Steel, Titanium, Tool SteelNoncenter CuttingRounded-Edge Square6646N176000000
     

    Long-Reach Fast-Cut Carbide Square End Mills

    Image of ProductInUse. Square Cut Style. Front orientation. Square Cut Style. Long-Reach Fast-Cut Carbide Square End Mills.
    Image of Product. Front orientation. End Mills. Long-Reach Fast-Cut Carbide Square End Mills.

    Square Cut Style

    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.
    Mill, mm
    Neck,
    mm
    Dia.
    Dia.
    Tolerance
    Shank Dia.,
    mm
    Dia.
    Lg.
    Lg. of
    Cut, mm
    Overall
    Lg., mm
    Flute
    Spacing
    Helix
    Angle
    For Use On
    End Mill Type
    Cut
    Style
    Each
    Aluminum Titanium Nitride (AlTiN)-Coated Carbide
     
    6 Flutes
    20-0.05 to 0.00020195624150Variable41°Iron, Nickel, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingSquare8154N1120000000
     

    Carbide Ball End Mills

    Image of ProductInUse. Ball Cut Style. Front orientation. Ball Cut Style. Carbide Ball End Mills.

    Ball Cut Style

    Image of Product. Front orientation. End Mills. Carbide Ball End Mills, 2 Flutes.

    2 Flutes

    Image of Product. Front orientation. End Mills. Carbide Ball End Mills, 4 Flutes.

    4 Flutes

    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.
    Uncoated Carbide—Use uncoated end mills for general purpose milling and short production runs.
    Mill, mm
    Dia.
    Dia. Tolerance
    Shank Dia.,
    mm
    Lg. of
    Cut, mm
    Overall
    Lg., mm
    Flute
    Spacing
    Helix
    Angle
    For Use On
    End Mill Type
    Cut
    Style
    Each
    Uncoated Carbide
     
    2 Flutes
    20-0.0510 to 0.00002038100Equal30°Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingBall8878A9010000000
     
    4 Flutes
    20-0.0510 to 0.00002038100Equal30°Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingBall8878A166000000
     

    Long-Reach Carbide Ball End Mills for Mold Making

    Image of ProductInUse. Ball Cut Style. Front orientation. Ball Cut Style. Long-Reach Carbide Ball End Mills for Mold Making.

    Ball Cut Style

    Image of Product. Front orientation. End Mills. Long-Reach Carbide Ball End Mills for Mold Making, 2 Flutes.

    2 Flutes

    Image of Product. Front orientation. End Mills. Long-Reach Carbide Ball End Mills for Mold Making, 3 Flutes.

    3 Flutes

    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.
    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.
    Uncoated Carbide—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.
    Aluminum Titanium Nitride (AlTiN)-Coated Carbide—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.
    Mill, mm
    Neck,
    mm
    Dia.
    Dia. Tolerance
    Shank Dia.,
    mm
    Dia.
    Lg.
    Lg. of
    Cut, mm
    Overall
    Lg., mm
    Flute
    Spacing
    Helix
    Angle
    For Use On
    End Mill Type
    Cut
    Style
    Each
    Uncoated Carbide
     
    3 Flutes
    200.0000 to 0.09912019.56238150Equal30°Aluminum, Brass, Bronze, Copper, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingBall8086N510000000
     
    Aluminum Titanium Nitride (AlTiN)-Coated Carbide
     
    2 Flutes
    200.0000 to 0.09912019.56238150Equal30°Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingBall8086N74000000
     
    3 Flutes
    200.0000 to 0.09912019.56238150Equal30°Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingBall8086N75000000
     

    Cobalt Steel Square End Mills with Two Milling Ends

    Image of Product. Front orientation. End Mills. Cobalt Steel Square End Mills with Two Milling Ends, 4 Flutes.

    4 Flutes

    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.
    4 Flutes—End mills with four flutes provide a finer finish and operate with less vibration when run at high speeds.
    Mill, mm
    Dia.
    Dia. Tolerance
    Shank Dia.,
    mm
    Lg. of
    Cut, mm
    Overall
    Lg., mm
    Flute
    Spacing
    Helix
    Angle
    For Use On
    End Mill Type
    Cut
    Style
    Each
    Uncoated Cobalt Steel
     
    4 Flutes
    20-0.0380 to 0.000022.247.6156Equal30°Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingSquare8891A470000000
     

    Roughing High-Speed Steel Square End Mills

    Image of Product. Front orientation. End Mills. Roughing High-Speed Steel Square End Mills, 4 Flutes.

    4 Flutes

    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—Center-cutting end mills allow plunge cuts into a surface.
    Mill, mm
    Dia.
    Dia. Tolerance
    Shank Dia.,
    mm
    Lg. of
    Cut, mm
    Overall
    Lg., mm
    Flute
    Pitch
    Flute
    Spacing
    Helix
    Angle
    For Use On
    End Mill Type
    Cut
    Style
    Each
    Uncoated High-Speed Steel
     
    4 Flutes
    20-0.125 to 0.1252038104FineEqual30°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelCenter CuttingSquare8819A818000000
     

    Fast-Cut Carbide Square End Mills with Chamfer Corner

    Image of Product. Front orientation. End Mills. Fast-Cut Carbide Square End Mills with Chamfer Corner, 4 Flutes.
    Image of Specification. End Mill with Coolant Holes. Side1 orientation. CrossSection view. Contains Annotated. End Mills for Coolant Holes. Fast-Cut Carbide Square End Mills with Chamfer Corner.

    4 Flutes

    End Mill with Coolant

    Holes

    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.
    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 for Coolant Holes—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.
    Aluminum Titanium Nitride (AlTiN)-Coated Carbide—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 Carbide—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.
    Mill Dia.,
    mm
    Shank Dia.,
    mm
    Lg. of
    Cut, mm
    Overall
    Lg., mm
    Chamfer
    Wd., mm
    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 Carbide—4 Flutes
    2020381040.545°Variable38°—Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool SteelCenter Cutting8745A1280000000
     
    Titanium Aluminum Silicon Nitride (TiAlSiN)-Coated Carbide—4 Flutes
    2020381040.245°Variable36° to 38°—Iron, Nickel, Stainless Steel, Steel, TitaniumCenter Cutting8745A365000000
     
    Titanium Aluminum Silicon Nitride (TiAlSiN)-Coated Carbide—3 Flutes
    2020381040.2445°Variable41° to 45°—Iron, Nickel, Stainless Steel, Steel, TitaniumCenter Cutting8745A343000000
     
    End Mills for Coolant Holes
     
    Titanium Aluminum Silicon Nitride (TiAlSiN)-Coated Carbide—4 Flutes
    2020381040.245°Variable36° to 38°4Iron, Nickel, Stainless Steel, Steel, TitaniumCenter Cutting8745A391000000
     

    Roughing Carbide Square End Mills

    Image of Product. Front orientation. End Mills. 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 Carbide—Titanium nitride (TiN)-coated end mills have good wear resistance.
    Titanium Aluminum Nitride (TiAlN)-Coated Carbide—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.
    Mill, mm
    Dia.
    Dia. Tolerance
    Shank Dia.,
    mm
    Lg. of
    Cut, mm
    Overall
    Lg., mm
    Flute
    Pitch
    Flute
    Spacing
    Helix
    Angle
    For Use On
    End Mill Type
    Cut
    Style
    Each
    Titanium Nitride (TiN)-Coated Carbide
     
    4 Flutes
    20-0.089 to 0.00002038100CoarseEqual30°Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingSquare87825A4160000000
     
    Titanium Aluminum Nitride (TiAlN)-Coated Carbide
     
    4 Flutes
    20-0.089 to 0.00002038100CoarseEqual30°Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingSquare87825A424000000
     

    Fast-Cut Carbide Ball End Mills

    Image of ProductInUse. Ball Cut Style. Front orientation. Ball Cut Style. Fast-Cut Carbide Ball End Mills.

    Ball Cut Style

    Image of Product. Front orientation. End Mills. Fast-Cut 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.
    Aluminum Titanium Nitride (AlTiN)-Coated Carbide—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.
    6 Flutes—End mills with six flutes provide a finer finish and operate with less vibration when run at high speeds.
    Mill Dia.,
    mm
    Shank Dia.,
    mm
    Lg. of
    Cut, mm
    Overall
    Lg., mm
    Flute
    Spacing
    Helix
    Angle
    Max. Ramping
    Angle
    For Use On
    End Mill Type
    Cut
    Style
    Each
     
    Aluminum Titanium Nitride (AlTiN)-Coated Carbide—6 Flutes
    202038104Variable36°3°Iron, Nickel, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingBall8745A1130000000
     

    Fast-Cut Roughing Carbide Square End Mills with Chamfer Corner

    Image of Product. Front orientation. End Mills. Fast-Cut 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) or aluminum titanium nitride (AlTiN) 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.
    Mill, mm
    Dia.
    Dia. Tolerance
    Shank Dia.,
    mm
    Lg. of
    Cut, mm
    Overall
    Lg., mm
    Flute
    Pitch
    Chamfer
    Wd., mm
    Corner Cutting
    Angle
    Flute
    Spacing
    Helix
    Angle
    For Use On
    End Mill Type
    Cut
    Style
    Each
    Aluminum Titanium Nitride (AlTiN)-Coated Carbide
     
    4 Flutes
    20-0.084 to 0.0002038104Coarse0.545°Variable36° to 38°Iron, Stainless Steel, Steel, TitaniumCenter CuttingSquare8207A1140000000
     
    back to top