Irwin Drill Bit 1/2 In. x 17 In. x 22 In. Spline
Spline standard tip fits all spline rotary hammers. Patented flute geometry removes dust from the hole quicker for fast drilling and long life.
Shot-peened, double-tempered finish reduces breakage
Copper braze material gives high heat resistance for reduced tip loss
All tips made to ANSI specifications
Chrome vanadium shaft through-hardened to 50-53Hr C