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.
![Irwin® Rotary Percussion Masonry Drill Bit- Straight Shank, 1/2" X 4" X 6", #IR-326015 (1/Pkg) Irwin® Rotary Percussion Masonry Drill Bit- Straight Shank, 1/2" X 4" X 6", #IR-326015 (1/Pkg)](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/309939/444199/326015__80129.1666730043.jpg?c=2)