Pre-drill and countersink to drive screws flush with the material surface or deep hole counter boring for driving screw heads below the surface. Ultra-sharp cutting flute clears chips efficiently and leaves a clean, smooth hole. Adjustable drill bit length for desired screwed depth, and features a flattened shank for a no-slip countersink connection.
- Countersink or counter bore clean, smooth holes for screws and fasteners
- Power groove 1/4" hex shank is quick change and impact drill/driver compatible
- Allen wrench for drill bit depth adjustments and replacement
- For use in wood and plastic
Sizes: #6, #8, #10, #12