- Fully hardened and tempered for extended bit life under constant heavy-duty use.
- The tip is precision formed for proper fit. Use when driving heat-treated or case-hardened screws such as sheet metal, self-tapping or self-drilling.
- 3" #R3 Square Gray Insert Bit SQ3301
- Length: 3"
- Hardness: Extra Hard
- Shipping Weight: 0.25 lbs.