- Lead screw pulls bit into work eliminating extra pressure and strain
- Specially heat-treated alloy steel resists damage from nails
- 7-1/2″ length
- 3/8″ hex shanks, 1/4″ bit has 1/4″ hex shank
- Includes bit sizes 1/4″, 3/8″, 1/2″, 5/8″, 3/4″, 7/8″ and 1″;