Description
Brand Name: IRWIN | Material: High Speed Steel | Number in Package: 1 pc. | Overall Length: 4-3/4 in. | Packaging Type: Carded | Shank Type: Straight Shank | Usage: Masonry | Flute Length: 2-1/2 in. | Drill Size: 5/16 in. Rotary Percussion - Straight Shank Fits all hammer | 5/16 in. drill bit | 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 percent 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
