Take on demanding jobsite materials with the 3/8 in. x 4 in. x 6 in. Rotary Percussion Drill Bit, made from copper braze for high heat resistance. With a chrome-vanadium spring steel shaft, this bit also has improved durability for a longer bit life. Its double-ground, extra-deep flute increases debris removal for better visibility while drilling. This bit is designed to work in all hammer drills that have a 3-jaw or Jacobs chuck.