Sds-plus shank electric hammer drill bit Dia. 4.0-30.0mm, total length: 110-1000mm Fits hammer drills with sds-plus chucking and 2-slot chucking system. It can be used with electric hammer of bosch co., aeg. Co., black & decker co., hilti co., phillips co., hitachi co., and makita co., the shank is round with dual-arc and dual-key way.