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    7 Products
    About Countersinks
    industrial info icon

    Choose the right countersink angle, body diameter, and number of flutes for your application.

    Drill-Bit Countersinks for Wood and Plastic

    These countersinks attach at various points along the drill bit, so one tool will drill countersunk holes for screws of different lengths. They're designed to cut a smooth and even finish in wood and plastic on the first pass.
    High-Speed Steel
    Image of Product. Front orientation. Countersinks. Drill-Bit Countersink, 1 Countersinking End, For Wood, For Cutting Screw Holes, Sold Individually, Straight Flute, 4 Flutes.
    Image of Product. Front orientation. Countersink and Counterbore Depth Stops.

    4 Flutes

    Depth Stops

    These wear-resistant countersinks cut faster and last longer than carbon steel countersinks, so they’re often used for high-volume jobs. You can also use them on harder materials, such as steel and stainless steel.
    Countersinks
    Depth Stops
    Drill Bits
    Uncoated
    Body
    Dia.
    For Drill
    Bit Size
    For Screw
    Size
    Overall
    Lg.
    Mfr.
    Each
    Each
    Each
    4 Flutes
     
    82° Countersink Angle
    1/4"3/32"No. 3
    		3/4"W. L. Fuller2910A110000002903A11000008870A1600000
     
    90° Countersink Angle
    1/4"3/32"No. 3
    		3/4"W. L. Fuller2910A71000002903A1100008870A160000
     
    Carbon Steel
    Image of Product. Front orientation. Countersinks. Drill-Bit Countersink, 1 Countersinking End, For Wood, For Cutting Screw Holes, Sold Individually, Straight Flute, 4 Flutes.
    Image of Product. Front orientation. Countersink and Counterbore Depth Stops.

    4 Flutes

    Depth Stops

    Stronger than high-speed steel, so it will cut through harder materials. However, high-speed steel is more precise, lasts longer, and cuts at higher speeds.
    Countersinks
    Depth Stops
    Drill Bits
    Uncoated
    Body
    Dia.
    For Drill
    Bit Size
    For Screw
    Size
    Overall
    Lg.
    Mfr.
    Each
    Each
    Each
    4 Flutes
     
    82° Countersink Angle
    1/4"3/32"No. 3
    		3/4"W. L. Fuller2785A120000002903A11000003080A3600000
     

    Counterbores for High-Profile Rounded-Head Screws

    Cut flat, close-fitting recesses for fillister-head screws. These counterbores cut deeply enough for screws with tall head profiles to sit flush with the surface.
    High-Speed SteelAbout High-Speed Steel
    Image of Product. Front orientation. Counterbores. Counterbores for High-Profile Rounded-Head Screws.
    Durable and wear resistant, these counterbores make accurate cuts in most materials without chipping or cracking.
    Uncoated
    For Screw
    Size
    Body
    Dia.
    Overall
    Lg.
    Shank
    Type
    No. of
    Flutes
    Pilot
    Lg.
    Mfr.
    Each
    No. 3
    		0.176"2 1/2"Round20.120"Republic Drill2909A14000000
     
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