Irwin (928) 326005 326005 - DRL BIT 1/4" X 2" X 4" MASONRY

Hammer Rotary Percussion Straight Shank Masonry Drill Bit - 1/4" x 2" x 4". 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: 1/4". Flute Length: 2". Overall Length: 4".