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

Single-flute cutting edge for greater control through steps. 3 flatted shank prevents slipping in drill chuck. 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

Attributes:

Cutting Diam [Max] = 1 in, Cutting Diam [Min] = 9/16 in, Cutting Edge Material = HSS, Material Thickness [Max] = 1/8 in, Measurement Type = Fractional, No. of Steps = 8, Packing Type = Carded, Shank Diam [Nom] = 7/16 in, Wt. = 0.37 lb. (1 EACH = 1 EACH)