Fits all SDS-plus and Hilti TE-C rotary hammers. Reduced area above the flute prevents the drill bit from binding while drilling. The full usable flute length can be utilized. Chrome vanadium shaft through-hardened to 50-53 HrC. Patented tip and flute design removes dust more efficiently, up to 25% faster than other bits. Shot-peened, double-tempered finish reduces breakage. Hot isostatically pressed to extend life and resist breakage. Copper braze material gives high heat-resistance for reduced tip loss. All tips made to ANSI (American National Standards Institute) specifications.