Bosch carbide rotary hammer bits feature tips that stay sharper longer and deliver more holes within specification than competitive bits. Manufactured to ANSI specification B212.14. SDS-max? rotary hammer bits fit Bosch SDS-max? hammers and competitive SDS-max? drive hammers and Hilti? hammers using TE-Y and TE-FY shanks. Unrivaled power from solid carbide head with robust S-cutter design for added speed and life.