High Speed Steel Fractional Hole Enlarging, 9/16 in to 1 in, 8 Steps

Single-flute cutting edge for greater control through steps Pilot hole required Also available with titanium nitride coating for longer life Patented single-flute cutting edge gives the user a true round hole every time Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates 3 flatted shank prevents slipping in drill chuck