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    24 Products
    About Countersinks
    industrial info icon

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

    Quick-Change Hex Drill-Bit Countersinks for Wood and Plastic

    Switch bits instead of tools to simplify jobs. These snap directly into drills, power screwdrivers, and other tools that accept a 1/4" hex shank. You can slide the countersink up and down the drill bit and then secure it with a set screw, so one tool will drill countersunk holes for screws of different lengths. These countersinks cut a smooth and even finish in wood and plastic on the first pass.
    High-Speed Steel
    Image of Product. Front orientation. Countersinks. For Cutting Screw Holes, Drill-Bit Countersink, For Wood, Straight Flute, Quick-Change Hex Shank, Sold Individually, 1 Countersinking End, 2 Flutes.

    2 Flutes

    The choice if you're countersinking lots of holes, these wear-resistant countersinks cut faster and last longer than carbon 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
    Replacement
    Drill Bits
    For
    Screw Size
    Uncoated
    Body
    Dia.
    Max. Hole
    Drilling Dp.
    Hard
    Wood
    Soft
    Wood
    Overall
    Lg.
    Shank
    Size
    Shank Type
    Mfr.
    Each
    Each
    2 Flutes
     
    82° Countersink Angle
    1/2"1"—No. 6
    		2 11/16"1/4"Quick-Change HexMake It Snappy Tools2747A22000008870A1600000
    1/2"1"No. 4
    		—2 9/16"1/4"Quick-Change HexMake It Snappy Tools2747A2100008870A150000
    1/2"1"No. 6
    		No. 8
    		2 27/32"1/4"Quick-Change HexMake It Snappy Tools2747A2300008870A170000
    1/2"1"No. 8
    		No. 10
    		2 31/32"1/4"Quick-Change HexMake It Snappy Tools2747A2400008870A180000
    1/2"1"No. 10
    		No. 12
    		3 3/32"1/4"Quick-Change HexMake It Snappy Tools2747A2500008870A190000
     

    Quick-Change Hex Drill-Bit Counterbores for Wood

    Image of ProductInUse. Shown with Optional Drill Stop (Sold Separately). Front orientation. Counterbores. Quick-Change Hex Drill-Bit Counterbores for Wood.

    Shown with Optional Drill

    Stop (Sold Separately)

    Pop the 1/4" hex shank into a drill chuck, power screwdriver, or impact driver to drill and counterbore a hole in a single step. These counterbores move along the included drill bit and lock into place with set screws to match the length of the screw you're installing.
    SteelAbout Steel
    Image of Product. Front orientation. Counterbores. Quick-Change Hex Drill-Bit Counterbores for Wood.
    Image of Product. Front orientation. Drill Stops.

    Stops

    Stops—Attach with a set screw to stop the counterbore at the exact depth you need. These stops have a ring on the end that rotates separately from the body. When the ring touches your workpiece, it stops spinning to prevent scratches and dents. An opening in the side clears chips from the hole as you cut.
    Counterbores
    Stops
    Replacement
    Drill Bits
    Shank
    Black Oxide
    Body
    Dia.
    Overall
    Lg.
    Size
    Type
    No. of
    Flutes
    Max. Hole
    Drilling Dp.
    Drill Bit
    Size
    Mfr.
    Each
    Each
    Each
    3/8"2 7/8"1/4"Quick-Change Hex31.1"1/8"
    		Make It Snappy Tools3438N210000003438N110000002908A3500000
    1/2"2 7/8"1/4"Quick-Change Hex31.2"1/8"
    		Make It Snappy Tools3438N22000003438N11000002908A350000
    5/8"3 1/4"1/4"Quick-Change Hex31.3"3/16"
    		Make It Snappy Tools3438N2300000———02908A390000
    5/8"3 21/32"1/4"Quick-Change Hex32.7"1/4"
    		Make It Snappy Tools3438N31100000———02908A440000
    3/4"3 1/4"1/4"Quick-Change Hex31.3"3/16"
    		Make It Snappy Tools3438N2400000———02908A390000
    3/4"3 5/8"1/4"Quick-Change Hex31.6"1/4"
    		Make It Snappy Tools3438N2500000———02908A440000
    3/4"3 31/32"1/4"Quick-Change Hex33"5/16"
    		Make It Snappy Tools3438N31200000———02908A4800000
    1"4 11/16"1/4"Quick-Change Hex33.7"7/16"
    		Make It Snappy Tools3438N31300000———02908A5700000
     
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