Bosch Tool Steel Hex Shank Extra Hard Insert Bit

Bosch standard insert bits are designed for today's tough applications. Made from the highest quality tool steel, the bits are fully hardened. Their jobsite-proven tempering process gives these bits increased durability. This helps to ensure long life under constant demanding use. They are engineered with precision-formed tips for proper fit. They have universal 1/4 in hex shanks for use with any bit holder.