Make it Snappy Tools 3-Piece HSS Tapered Countersink Bit Set

The set includes three countersink bit assemblies, one each for #6, #8, and #10 wood screws. See more drill bits & drivers.

It uses a 1/4" standard hex shank that fits all standard quick-change chucks, impact drivers, or 3-jaw drill chucks.

Yes. These tapered countersink bits drill the pilot hole and countersink hole in one step, designed for use with traditional tapered wood screws.

The countersink angle is 82 degrees, which lets standard screw heads set tight and flush to the surface.

The included HSS tapered twist drills are made of M2 tool steel, and the countersinks are alloy steel, thru-hardened to cut hardwoods and composites.

Yes. The thru-hardened countersinks can be sharpened for a long cutting life. For honing and sharpening supplies, see our sharpening supplies.

It's designed not to. The large 1/4" hardened set screw is harder than the allen wrench, so the set screw doesn't strip, and it holds the drill bit securely to prevent slippage.

Yes. The drill bits are easily adjustable for proper pilot-hole depth, and they use round-shank tapered drill bits held by the set screw.

Yes. The 1/4" standard hex shank fits standard quick-change chucks, impact drivers, and 3-jaw drill chucks. Explore more drilling & boring tools.

It's made by Make it Snappy Tools, designed for use with traditional tapered wood screws in hardwoods and composites.