BIT 10-12 SLOTTED 2/CD

Extra Hard: 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. The combination of highest quality S2 tool steel and a proven sub-zero tempering process gives these bits long life and increased durability. Made in USA under ISO9001 standards.