Greenlee 36414 Multi Hole Step Bit, 1-3/8"
Greenlee's unique split tip design penetrates through steel faster. Resists walking or skidding, even on round surfaces. Balanced, double-flute construction requires less pressure, does the work for you. Designed and manufactured in USA. This item has multiple hole diameters due to the nature of the Step Bit.   7/8”, 1-1/8”, 1.201” (30.5 mm), 1-7/32”, 1-1/4”, & 1-3/8” are the sizes at each step level.