UFFY - 3-1/2" Inch Robertson Square SQ # 1 Power Impact Bit 10 pack 1/4 Hex - Product Features
- 3 1/2? Length
- # 1 - Square/ Robertson Impact Drive
- Used by some of the largest manufactureres in the US. Industrial quality.
- 58-60 HRC (Rockewll Hardness). S2 Material
- Core hardened and black manganese phosphate coating for extended life