Dophee 8Pcs Socket Adapter Impact Hex Shank Drill Bits Power Extension Bar Set 1/4\ 3/8\ 1/2\ Bits
- 6" extension threads into 9" chucking extension for 15" length.
- Drill bit extension set has male and female thread size of 1/4-28.
- Drill extension set is black oxided to prevent corrosion and enhance appearance.