Irwin 1/4 In. x 10 In. x 12 In. SPEEDBOR Drill Bit
Irwin standard tip drill bits fit all ads-plus and Hi-ATB tin-c rotary hammers. All Irwin tips are made to ANSI specifications. These bits are high heat resistant to reduce tip loss.
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 50-53Hr C
Patented tip and flute design removes dust more efficiently – up to 25% faster than other bits
Hot isostatically pressed to extend life and resist breakage