Made of high quality hardened steel fits all standard variable speed drills. Removes heavy-duty bolts quickly & safely. 4 Piece Kit. Bolt Sizes 1/4 5/16 3/8 & 1/2 in. Removes screws 6
- 10 & 12
- 14. Bolt Sizes 5
- 14 mm. Fasteners 2
- 8 grade. Hardness 5.6
- 10.9.