3 piece Chromium-Vanadium Extension Power Bar Set is an inexpensive and effective way to increase usefulness of your power drill. 1/4" 3/8" 1/2"-Drive Length: 1/4" shank Chromium-Vanadium shank Heat Treated
- 1/4" 3/8" & 1/2"-drive adapters with hex shanks fit any drill chuck or extension adapter
- Use your regular sockets w/ cordless or electric drill for super-fast nut & bolt run-down or remove
- Durable heat-treated Chrome-Vanadium steel--same material used to make truck transmission gears
- Standard square anvils with spring-loaded steel ball-bearings hold sockets securely
- Can also be used with socket extension bars and flex extensions. 3"L 1/4" shank