Product Description
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 specificationsDiameter- 5/16" Twist Length- 8" Overall Length- 12"