Spade drill bit extension 6in. For all wood bits with 1/4in round shanks; three flats on shank. Follows 5/8in and larger bits through hole. Heavy-duty; double set screw type; adds to regular bit lengths. Forged of finest quality tool steel. Allen wrench included.
- Old style.
- Use with 1/4in shank bits.
- Includes key.
- 6in length.