Irwin Unibit Titanium Fractional Self-Starting, 1/4 in-3/4 in, 9 Steps

Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates. Single-flute cutting edge for greater control through steps. 3 flatted shank prevents slipping in drill chuck. New SpeedPoint tip penetrates faster than previous Unibits and prevents walking.

Attributes:

Cutting Diam [Max] = 3/4 in, Cutting Diam [Min] = 1/4 in, Cutting Edge Material = HSS, Finish = TiN, Material Thickness [Max] = 3/8 in, Measurement Type = Fractional, No. of Steps = 9, Packing Type = Carded, Shank Diam [Nom] = 3/8 in, Tool Shape = Tree - Step Drill, Type = Step Drill Bit, Wt. = 2.41 lb. (1 EACH = 1 EACH)