Diablo SDS-Plus 4 In. Core Rotary Hammer Drill Bit Extension

Compatible with Diablo SDS-Plus thin wall core bits and core pilot bits Screw core bit onto extension for coring applications Diablo thin wall core bits withstand impact and high heat applications for superior life and productivity versus standard core bits Available lengths: 4 in. (requires Diablos core pilot bit) and 13 in. (use with Diablos one-piece extension and pilot bit) Maximum performance in cordless and corded SDS-Plus rotary hammers