Also cuts mild steel, copper, brass, aluminum, fiberglass, plastic, wood and laminates Product Information:About the Greenlee 30008 Kwik Stepper Electrician#39;s MultiHole Step Bit 11/8Are you unsatisfied with the job that your current... DRILL SIZE; 1-1/8 INCH MAX. Greenlee - Step Drill Bit: 1/2 Min, 1 Max, Cobalt, 3 Hole Sizes | MSC Greenlee 30008c Step Bit Driver Diamond Tool: Greenlee 30008 Bit, Step #8 (packaged Electrician Step Bit Cobalt HSS engineered for maximum life on stainless steel Greenlee® Kwik Stepper® Step Bit Kits - Pressure Solutions Two cutting edges share the load resulting in faster drill times with less force DRILL SIZE; KWIK STEPPER[R] BRAND; NUMBER OF STEPS 3; MATERIAL THICKNESS 10 GAUGE