McMaster-Carr logo
    Filter by
    System of Measurement
    Number of Flutes
    End Mill Type
    Shank Diameter
    Attribute Image
    Cut Style
    Length of Cut
    Attribute Image
    Number of Milling Ends
    Overall Length
    Attribute Image
    Flute Type
    Sold As
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Industrial Info Snippet
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Flute Spacing
    Shank Type
    Chamfer Width
    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)
    Help me decide (beta)
    4 Products

    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.

    4 Flutes

    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.
    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
    For Use On
    End Mill Type
    Mfr.
    Each
     
    Aluminum Titanium Nitride (AlTiN)-Coated Carbide—4 Flutes
    8.51019720.345°Variable36° to 38°Stainless Steel, TitaniumCenter CuttingGuhring8207A472000000
     
    Titanium Aluminum Silicon Nitride (TiAlSiN)-Coated Carbide—3 Flutes
    8.51019720.1345°Variable41° to 45°Iron, Nickel, Stainless Steel, Steel, TitaniumCenter CuttingGuhring8745A33600000
     

    High-Speed Steel Square End Mills

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

    2 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
    Mfr.
    Each
    Uncoated High-Speed Steel
     
    2 Flutes
    8.50.000 to 0.0259.514.359Equal30°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelCenter CuttingSquareQuinco Tool Products8853A755000000
     
    Titanium Nitride (TiN)-Coated High-Speed Steel
     
    2 Flutes
    8.50.000 to 0.0259.514.359Equal30°Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Tool SteelCenter CuttingSquareQuinco Tool Products8694A2500000
     
    back to top