Irwin straight shank rotary percussion masonry drill bit for hammer drills fitted with a 3-jaw or Jacobs chuck. The carbide tip drills concrete, brick, block, and other masonry. The 12" overall length reaches deeper into masonry for through-holes and deeper anchor settings.

• Bit diameter: 5/8"
• Overall length: 12"
• Flute length (maximum drilling depth): 8"
• Shank: 1/2" straight shank - the reduced shank lets this 5/8" bit run in a standard 1/2" chuck
• Chrome vanadium spring steel shaft, through-hardened to 50-53 HRC
• Patented flute geometry clears dust from the hole faster for quicker drilling and longer bit life
• 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
• Carbide cutting tip made to ANSI specifications