- 7-Piece set includes bits for drilling pilot holes for screws.
- Specially designed steel counter sleeve for countersinks or counterbores pilot holes.
- Adjustable counter sleeve depth with Allen wrench. Drill and countersink for wood screws without changing bits.
- Drilling length can be adjusted for various screws lengths simply by loosening and tightening the Allen setscrew.
- Improve efficiency and visuals in woodworking, decking, and framing.