Irwin Speedhammer Plus Standard Tip 1/2 x 10 x 12Fits 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 length can be utilized Chrome vanadium shaft through hardened to 50 53HrC 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