Power through demanding drilling jobs with the 5/8 in. x 3 in. x 6 in. Rotary Percussion Drill Bit, made from copper braze material for higher heat resistance. With a chrome-vanadium spring steel shaft, this bit has increased durability and a longer bit life. The double-ground, extra-deep flute increases speed and this bit works in hammer drills with a 3-jaw or Jacobs chuck.