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    9 Products
    About Countersinks
    industrial info icon

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

    Two-Piece Long-Reach Countersinks for Screws

    Create a custom-length countersink for access to hard-to-reach holes. These tools are used in angle drills and hand drivers for countersinking and deburring. For maximum stability, choose the shortest extension that works for your application.
    High-Speed Steel
    Image of Product. Front orientation. Countersinks. Two-Piece Long-Reach Countersinks for Screws, 2 Flutes.
    Image of Product. Front orientation. Countersink and Counterbore Extensions.

    2 Flutes

    Extensions

    These versatile, wear-resistant countersinks cut cleanly in most materials, including plastic, aluminum, and steel.
    Manufacturer—We source from trusted manufacturers who vet raw materials for purity and use diamond grinding wheels to machine precise edges. This keeps cutting surfaces smooth and free of microscopic burrs. Because our suppliers clean their wheels more often than other manufacturers, each countersink is consistently ground to create uniform holes every time.
    Countersinks
    4" Overall Length Countersink and
    Counterbore Extensions
    6" Overall Length Countersink and
    Counterbore Extensions
    12" Overall Length Countersink and
    Counterbore Extensions
    Dia.
    Uncoated
    Body
    Shank
    Overall
    Lg.
    Shank
    Type
    Mfr.
    Each
    Each
    Each
    Each
    2 Flutes
     
    82° Countersink Angle
    3/8"1/4"3/4"ThreadedCraig Tools3109A210000003109A710000003109A720000003109A73000000
    1/2"1/4"3/4"ThreadedCraig Tools3109A22000003109A71000003109A72000003109A7300000
     
    90° Countersink Angle
    3/8"1/4"3/4"ThreadedCraig Tools3109A31000003109A71000003109A72000003109A7300000
    1/2"1/4"3/4"ThreadedCraig Tools3109A3200000———0———0———0
     

    Two-Piece Long-Reach Countersinks for Rivets

    Create a custom-length countersink for access to hard-to-reach holes. These tools are used in angle drills and hand drivers for countersinking and deburring. For maximum stability, choose the shortest extension that works for your application.
    High-Speed Steel
    Image of Product. Front orientation. Countersinks. Two-Piece Long-Reach Countersinks for Rivets, 2 Flutes.
    Image of Product. Front orientation. Countersink and Counterbore Extensions.

    2 Flutes

    Extensions

    These versatile, wear-resistant countersinks cut cleanly in most materials, including plastic, aluminum, and steel.
    Manufacturer—We source from trusted manufacturers who vet raw materials for purity and use diamond grinding wheels to machine precise edges. This keeps cutting surfaces smooth and free of microscopic burrs. Because our suppliers clean their wheels more often than other manufacturers, each countersink is consistently ground to create uniform holes every time.
    Countersinks
    4" Overall Length Countersink and
    Counterbore Extensions
    6" Overall Length Countersink and
    Counterbore Extensions
    12" Overall Length Countersink and
    Counterbore Extensions
    Dia.
    Uncoated
    Body
    Shank
    Overall
    Lg.
    Shank
    Type
    Mfr.
    Each
    Each
    Each
    Each
    2 Flutes
     
    100° Countersink Angle
    3/8"1/4"3/4"ThreadedCraig Tools3109A410000003109A710000003109A720000003109A73000000
    1/2"1/4"3/4"ThreadedCraig Tools3109A42000003109A71000003109A72000003109A7300000
     
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