Irwin Unibit Cobalt Step Drills, 9/16 in-1 in, 8 Steps

6x longer life. Laser marked sizes.

Attributes:

Applicable Materials = Aluminum; Brass; Copper; Mild Steel; Plexiglass; Wood, Applications = General Use; MRO, Bit/Blade Mounting Size [Nom] = 7/16 in, Bit/Blade Mounting Type = Hex, Cutting Diam [Max] = 1 in, Cutting Diam [Min] = 9/16 in, Cutting Edge Material = M35 Cobalt HSS, Height [Nom] = 0.95 in, Increment = 1/16 in, Length [Nom] = 7 1/4 in, Material Thickness [Max] = 1/16 gauge, Measurement Type = Fractional, No. of Flutes = 1, No. of Steps = 8, Point Shape = Speed Point, Resistance = Friction; Heat, Shank Type = Hex, Step Depth = 9/16 to 1 in, Type = Step Drill Bit, Width [Nom] = 3 in, Wt. = 0.32 lb. (1 EACH = 1 EACH)