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.
- Bosch reinforced screwdriver bits are designed to handle tough torque applications
- Made of the highest quality S2 tool steel for durability
- Bosch offers premium quality power bits, insert bits, bit holders and nut setters for use in all drill/drivers and power screwdrivers
- Extra Hard bits are hardened to 60-62 HRC for extended life