Carbide-tipped IRWIN SpeedHammer Plus masonry bit for drilling anchor and fastener holes in concrete, brick and block with an SDS-Plus rotary hammer.

• 5/16" diameter, 4" usable flute length, 6" overall length
• Patented 2-cutter carbide tip combines speed with centering for more accurate holes; all tips made to ANSI specifications
• Patented tip and flute design removes dust more efficiently - up to 25% faster than other bits
• Chrome vanadium shaft through-hardened to 50-53 HrC
• Shot-peened, double-tempered finish reduces breakage
• Reduced area above the flute prevents the bit from binding, so the full usable length can be drilled
• Fits all SDS-Plus and Hilti TE-C rotary hammers