Fits all hammer drills with 3-jaw or Jacobs chuck Chrome vanadium shaft through-hardened to 50-53HrC Patented flute geometry removes dust from the hole quicker for fast drilling and long life Up to 150% faster than other competitive 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 specifications
Diameter- 5/16" Twist Length- 4" Overall Length- 6"