Features:
- 7/16" quick change impact shank
- Full forged body on bits 3/4" diameter or larger
- Speedbor with Weldtec ship auger bits are made stronger and last longer
- Harder cutting edge is welded to the base material
- 2 times nail cutting life, compared to standard Irwin ship augers
- Patent pending welded cutting edge
- Aggressive screw pitch
- Wide flutes