Product Description
- Bits drill through nails, wood, vinyl, plastics, and heavy timber.
- Special bit steel with machine-ground flutes and polished edges for smooth, wobble-free boring.
- Deep, open throat design clears chips for faster, cleaner cuts.
- Feed-screw pilot draws bit into wood.
- Full length is heat-treated and tempered.
- Shanks are 7/16'' hex to fit 1/2'' (13 mm) and larger three-jaw chucks.
- Head and twist are ground to correct clearance for easy removal from hole.
- For heavy construction and repair work in mines, on docks and bridges, and for electrical work.