Irwin 326009 Rotary Hammer Drill Bit 5/16 in Dia 6 in OAL Percussion Twist Flute 2-Flute 5/16 in Dia Shank

Bit will fit all hammer drills with 3 jaw or Jacobs chuck and features a chrome vanadium shaft through hardened to 50-53HrC, shot-peened, double-tempered finish, flute geometry removes dust from the hole quicker, copper braze material gives high heat resistance. All tips made to ANSI specifications.