Step Drill Bit, Number Of Drill Stages: 11, Minimum Drill Diameter: 1/4 IN, Maximum Drill Diameter: 7/8 IN, Step Increments: 1/16 IN, Step Thickness: 1/16 IN, 3/8 IN Shank, 1 IN Shank, Titanium Nitride Finish
Trust Ideal step drill bits for precise, repetitive drilling through the toughest materials including brass, carbon steel, cast iron, stainless-steel, and more; Self-starting point eliminates starter holes or punches; Double-fluted design for balanced cuts