McMaster-Carr logo
    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)
    25 Products

    Spiral Router Bits for Steel and Stainless Steel

    The aluminum-titanium-nitride (AlTiN) coating on these bits resists heat and wear when cutting steel and stainless steel. They have a square cut style for creating slots, pockets, and edges. They're made of solid carbide for longer tool life and faster cutting speeds than high-speed steel. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the bit from breaking. With spiral flutes, they leave a smoother finish than straight-flute bits and are good for making plunge cuts. The flutes lift chips up from the workpiece for applications that require a smooth finish on the bottom edge of the cut. Securely clamp your material before routing to prevent lifting. Bits with more flutes produce a smoother finish.
    Aluminum Titanium Nitride (AlTiN)-Coated Carbide
    Image of ProductInUse. Front orientation. Router Bits. Spiral Router Bits for Steel and Stainless Steel , Aluminum Titanium Nitride (AlTiN)-Coated Carbide.
    Image of Product. Front orientation. Router Bits. Spiral Router Bits for Steel and Stainless Steel , Aluminum Titanium Nitride (AlTiN)-Coated Carbide, Square Cut Style, Spiral Flute, 4 Flutes.
    Image of Product. Front orientation. Router Bits. Spiral Router Bits for Steel and Stainless Steel , Aluminum Titanium Nitride (AlTiN)-Coated Carbide, Square Cut Style, Spiral Flute, 2 Flutes.

    Square Cut Style

    Spiral Flute

    4 Flutes

    Square Cut Style

    Spiral Flute

    2 Flutes

    Image of Product. Front orientation. Router Bits. Spiral Router Bits for Steel and Stainless Steel , Aluminum Titanium Nitride (AlTiN)-Coated Carbide, Square Cut Style, Spiral Flute, 3 Flutes.

    Square Cut Style

    Spiral Flute

    3 Flutes

    Cutting
    Dia.
    Lg. of
    Cut
    Shank
    Dia.
    Overall
    Lg.
    No. of
    Flutes
    For Tool
    Type
    For Use On
    Each
    Square Cut Style
     
    Spiral Flutes with Upward Chip Removal
    1/32"1/16"1/8"1 1/2"4CNC MachineSteel, Stainless Steel00000000000000
    1/16"3/16"1/8"1 1/2"4CNC MachineSteel, Stainless Steel0000000000000
    1/16"3/16"1/8"1 1/2"2CNC MachineSteel, Stainless Steel0000000000000
    1/8"1/4"1/8"2"2CNC MachineSteel, Stainless Steel000000000000
    1/8"3/8"1/4"1 1/2"4CNC MachineSteel, Stainless Steel0000000000000
    1/8"3/8"1/4"1 1/2"3CNC MachineSteel, Stainless Steel0000000000000
    3/16"3/8"3/16"2 1/2"2CNC MachineSteel, Stainless Steel000000000000
    3/16"7/16"1/4"1 7/8"3CNC MachineSteel, Stainless Steel0000000000000
    1/4"3/8"1/4"2 1/2"2CNC MachineSteel, Stainless Steel000000000000
    1/4"5/8"1/4"2 3/8"4CNC MachineSteel, Stainless Steel0000000000000
    1/4"5/8"1/4"2 3/8"3CNC MachineSteel, Stainless Steel0000000000000
    1/4"1 1/8"1/4"3"4CNC MachineSteel, Stainless Steel0000000000000
    5/16"1 1/8"5/16"3"2CNC MachineSteel, Stainless Steel0000000000000
    3/8"1/2"3/8"3"2CNC MachineSteel, Stainless Steel000000000000
    1/2"3/4"1/2"3"2CNC MachineSteel, Stainless Steel0000000000000
     

    Drill/Mill Router Bits

    Image of Product. Front orientation. Router Bits. Drill/Mill Router Bits .
    Drill, mill, and trim with the same bit. The unique shape on these bits was originally used for aircraft panels. They have a pointed end and spiral flutes, like a drill bit, making downward plunge cuts easier than with square-cut and straight-flute bits. The spiral flutes also leave a smoother finish. The flutes lift chips up from the workpiece for applications that require a clean finish on the bottom edge of the cut. Securely clamp your material before routing to prevent lifting.
    These bits are made of high-speed steel for general purpose use. They can be used with hand tools, router tables, and CNC machines. These bits do not have a pilot, so guide your router along a straight edge when hand routing to make accurate cuts.
    Uncoated High-Speed Steel
    Image of ProductInUse. Front orientation. Router Bits. Drill/Mill Router Bits , Uncoated High-Speed Steel, Drill/Mill Cut Style—Plunge-Cut.

    Drill/Mill Cut

    Style—Plunge-Cut

    4 Flutes—Bits with four flutes produce a smoother finish than three-flute bits.
    Cutting
    Dia.
    Lg. of
    Cut
    Shank
    Dia.
    Overall
    Lg.
    No. of
    Flutes
    For Tool Type
    For Use On
    Each
    Drill/Mill Cut Style—Plunge-Cut
     
    Spiral Flutes with Upward Chip Removal
    3/32"13/16"3/32"2"3Hand Router, Router Table, CNC MachineCast Iron, Copper, Steel, Stainless Steel, Titanium00000000000000
    1/8"7/8"1/8"2 1/4"3Hand Router, Router Table, CNC MachineCast Iron, Copper, Steel, Stainless Steel, Titanium0000000000000
    5/32"1 1/16"3/16"2 1/2"3Hand Router, Router Table, CNC MachineCast Iron, Copper, Steel, Stainless Steel, Titanium0000000000000
    7/32"1 1/4"1/4"2 3/4"4Hand Router, Router Table, CNC MachineCast Iron, Copper, Steel, Stainless Steel, Titanium0000000000000
     

    Engraving Router Bits

    Image of Product. Front orientation. Router Bits. Engraving Router Bits .
    A fine-point diamond tip precisely cuts lettering, numbering, and grade marks in materials such as aluminum, steel, copper, and granite. These bits also work on plastics such as polyethylene, polycarbonate, and vinyl. They’re spring loaded to apply constant pressure to the tip.
    Uncoated Diamond-Tipped Stainless Steel
    Image of ProductInUse. Front orientation. Router Bits. Engraving Router Bits , Uncoated Diamond-Tipped Stainless Steel , Engraving Cut Style.

    Engraving Cut Style

    Replacement 120° Cut Angle Tips—Use 90° cut angle tips (sold separately) to engrave the finest details.
    Router Bits
    Replacement 120°
    Cut Angle Tips
    90° Cut
    Angle Tips
    Cutting
    Dia.
    Lg. of
    Cut
    Cut
    Angle
    Shank
    Dia.
    Overall
    Lg.
    For Tool
    Type
    For Use On
    Each
    Each
    Each
    Engraving Cut Style
     
    Fluteless
    0.005"1/32"120°1/4"3 3/4"CNC MachineWood, Hard Plastic, Aluminum, Copper, Steel, Granite, Glass, Plastic, Foam0000000000000000000000000000000000000000
    0.005"1/32"120°1/2"3 3/4"CNC MachineWood, Hard Plastic, Aluminum, Copper, Steel, Granite, Glass, Plastic, Foam0000000000000000000000000000000000000
     

    Plotter Pen Router Bits

    Image of Product. Front orientation. Plotter Pen Router Bits.
    Test new designs without ruining your material—these bits hold a pen rather than a blade, so you can trace a CNC machine’s path before you cut. Spot errors, adjust your design, and trace again. For repeat testing on metal, glass, and plastic, you can wipe the ink off with acetone. Turn your spindle off to hold the marker steady and draw clean lines.
    Router Bits
    Replacement Pens
    Tip
    Size
    Stroke
    Wd., mm
    For Use On
    Drying
    Time
    Shank
    Dia.
    Overall
    Lg.
    For Tool
    Type
    Includes
    Each
    Each
    Uncoated Brass
     
    Fluteless
    Medium1.3Ceramic, Foam, Glass, Particleboard, Plastic, Plywood, Steel, WoodInstant1/2"4 1/16"CNC MachineFour Pens (Black, Blue, Green, Red)00000000000000000000000000
     
    back to top