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    36 Products
    About Counterbores
    industrial info icon

    Create flat-bottomed holes, so your screw heads sit flush, recessed, or slightly raised.

    Drill-Bit Counterbores for Wood

    Image of ProductInUse. Shown with Drill Bit (Sold Separately). Front orientation. Counterbores. Drill-Bit Counterbores for Wood.

    Shown with Drill Bit (Sold

    Separately)

    Drill and counterbore holes of different depths without changing tools. These counterbores move along the drill bit (sold separately) and lock into place with set screws to match the length of the screw you're installing.
    Steel
    Image of Product. Front orientation. Counterbores. Drill-Bit Counterbores for Wood.
    Image of Product. Front orientation. Counterbore Collars.

    Counterbore

    Collars

    Counterbore Collars—Attach with a set screw to stop the counterbore at the exact depth you need.
    Counterbores
    Counterbore Collars
    Uncoated
    Body
    Dia.
    Overall
    Lg.
    No. of
    Flutes
    For Drill
    Bit Size
    Each
    OD
    Wd.
    Each
    5/8"1"43/16"00000000000007/8"1/4"000000000000
    5/8"1"41/4"0000000000007/8"1/4"00000000000
    3/4"1"41/4"0000000000001"1/4"00000000000
    3/4"1 1/8"45/16"0000000000001"1/4"00000000000
    7/8"1 1/4"43/8"0000000000001 1/8"1/4"00000000000
    1"1 3/8"47/16"0000000000001 1/4"5/16"00000000000
    1 1/8"1 1/2"41/2"0000000000001 3/8"5/16"00000000000
    1 1/4"1 5/8"49/16"0000000000001 1/2"3/8"00000000000
     

    Drill-Bit Counterbore Sets for Wood

    Image of Product. Front orientation. Counterbores. Drill-Bit Counterbore Sets for Wood.
    Drill and counterbore holes of different depths without changing tools. These counterbores move along the drill bit (sold separately) and lock into place with set screws to match the length of the screw you're installing.
    Body Dia.
    No. of
    Pieces
    Container
    Type
    Each
    Uncoated Steel
    3/46", 1/4", 5/16", 3/8", 7/16", 1/2"6Wood Stand00000000000000
     

    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.
    Steel
    Image of Product. Front orientation. Counterbores. Quick-Change Hex Drill-Bit Counterbores for Wood.
    Image of Product. Front orientation. Drill Stops.

    Drill Stops

    Drill 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
    Drill Stops
    Replacement
    Drill Bits
    Shank
    Black Oxide
    Body
    Dia.
    Overall
    Lg.
    Size
    Type
    No. of
    Flutes
    Max. Hole
    Drilling Dp.
    Drill Bit
    Size
    Each
    Each
    Each
    3/8"2 7/8"1/4"Quick-Change Hex31.1"1/8"00000000000000000000000000000000000000
    1/2"2 7/8"1/4"Quick-Change Hex31.2"1/8"00000000000000000000000000000000000
    5/8"3 1/4"1/4"Quick-Change Hex31.3"3/16"00000000000000000000000000000000000
    5/8"3 21/32"1/4"Quick-Change Hex32.7"1/4"0000000000000———000000000000
    3/4"3 1/4"1/4"Quick-Change Hex31.3"3/16"00000000000000000000000000000000000
    3/4"3 5/8"1/4"Quick-Change Hex31.6"1/4"00000000000000000000000000000000000
    3/4"3 31/32"1/4"Quick-Change Hex33"5/16"0000000000000———000000000000
    1"4 11/16"1/4"Quick-Change Hex33.7"7/16"0000000000000———0000000000000
     

    Fast-Cutting Smooth-Finish Drill-Bit Counterbores for Wood

    With thin cutting edges to minimize contact with the hole, these counterbores make smooth, accurate cuts at high speeds. Attach them to any drill bit with a 1/2" shank and a cutting diameter of 1/2" or larger. They move up and down the drill bit and lock into place with set screws to match the length of the screw you're installing.
    Carbon Steel
    Image of Product. Front orientation. ZoomedIn view. Counterbores. Fast-Cutting Smooth-Finish Drill-Bit Counterbores for Wood.
    Uncoated
    Body
    Dia.
    Overall
    Lg.
    For Shank
    Dia.
    For Min. Drill
    Bit Cutting Dia.
    Each
    1 1/8"1"1/2"1/2"0000000000000
    1 1/4"1"1/2"1/2"000000000000
    1 3/8"1"1/2"1/2"0000000000000
    1 1/2"1"1/2"1/2"0000000000000
    1 3/4"1"1/2"1/2"0000000000000
    2"1 1/4"1/2"1/2"0000000000000
    2 1/2"1 1/4"1/2"1/2"0000000000000
     
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