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    8 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.

    4 Flutes

    The choice if you're countersinking lots of holes, these wear-resistant countersinks cut faster and last longer than carbon steel.
    Countersinks
    Counterbore Collars
    Uncoated
    Body
    Dia.
    For Drill
    Bit Size
    For Screw
    Size
    Overall
    Lg.
    Each
    OD
    Wd.
    Each
    4 Flutes
     
    82° Countersink Angle
    3/8"5/32"No. 7
    		7/8"00000000000005/8"1/4"000000000000
    1/2"5/32"No. 7
    		7/8"0000000000003/4"1/4"00000000000
     
    90° Countersink Angle
    3/8"5/32"No. 7
    		7/8"0000000000005/8"1/4"00000000000
    1/2"5/32"No. 7
    		7/8"0000000000003/4"1/4"00000000000
     
    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.

    4 Flutes

    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
    Counterbore Collars
    Uncoated
    Body
    Dia.
    For Drill
    Bit Size
    For Screw
    Size
    Overall
    Lg.
    Each
    OD
    Wd.
    Each
    4 Flutes
     
    82° Countersink Angle
    3/8"5/32"No. 7
    		7/8"0000000000005/8"1/4"000000000000
    1/2"5/32"No. 7
    		7/8"0000000000003/4"1/4"00000000000
     
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