The MILWAUKEE® 1-1/8" Hex chisels are forged from high-grade steel to deliver long-lasting performance and life. These 1-1/8" Hex chisels are designed for general chipping and breaking in concrete applications. These bits are coated for rust prevention. The 1-1/8" hex notch shank is for use with the MX FUEL™ Breaker and corded electric breaker hammers.