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 …

DECKRKAT 12-Piece Countersink Drill Bit Set - 3-in-1 Wood Counterbore Kit for #6#8#10#12#16 Screws | 82° Chamfer, Depth Adjustable | 5 Spare Bits,2 Limit Rings,Hex Key,Case.

What is a Counterbore Drill? How does it work? What is a Counterbore Drill Bit? A counterbore drill bit is a specialized tool designed to create a flat-bottomed, cylindrical enlargement at the top of a pre …

With geometry that matches the profile of common fasteners, these counterbore drill bits save you time by chamfering, or countersinking the hole as they drill. After drilling is complete, tap the hole and …

Sep 4, 2025 · Counterbore drill bits function by utilizing a series of cutting edges arranged in a cylindrical pattern around the bit’s circumference. As the bit rotates, these cutting edges remove material from …

Create flat-bottomed holes, so your screw heads sit flush, recessed, or slightly raised. Choose from our selection of inch size high-speed steel counterbores, oversized high-speed steel counterbores, and …

Online shopping for Counterbores - Cutting Tools from a great selection at Industrial & Scientific Store.

Victor Machinery carries a wide selection of counterbore bits and cap screw counterbores. Browse our line of HSS step drills & counterbore sets today.

Counterbores are a specialty tool that creates a hole for the body of a fastener, as well as a larger cavity for its head. These tools usually have one radius measurement to create the hole for the fastening …

MSC Industrial Supply offers a wide range of specialized tools, including counterbores & porting tools, designed to achieve precision drilling efficiently.