- A patent, unique and durable power tool accessory for woodworking.
- Adjustable auto-stop collar determines depth of countersink pilot holes.
- Anti-clog debris holes are for scraps out easily while drilling.
- Auto-stop collar free-spins at the fixed depth.
- Special o-ring is to protect the workpiece surface.
- Sharp, three-flutes Counterbore.
- Parabolic HSS drill bit won't embed scraps in grooves of drills.
- Drill bit is replaceable.
- Size: for bolts 1/4"; 5/16"; 3/8"
Main Export Market
Asia ,Europe ,North America ,Oceania