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If you do any woodworking, you know how annoying it is to drill a pilot hole and then switch bits to countersink the screw head.



The tapered drill bit is made from M2 high-speed steel, so it stays sharp and cuts clean without dulling quickly.
The countersink part is #45 carbon steel with four cutting flutes and an 82-degree chamfer angle, which gives you a nice, clean cone for screw heads to sit flush.
The pilot depth is adjustable—just loosen two hex screws, slide the countersink to where you want it, and tighten.

The hex shank fits standard 1/4-inch quick-change chucks, including impact drills.
Works great on hardwoods, softwoods, plywood, MDF, particle board, and even plastics.



5 out of 5