Ideal® 35-521IDEAL® High Speed Quick Change Step Drill Bit, Imperial, 1/8 in Min Hole Diameter, 1/2 in Max Hole Diameter, Steel, 13 Hole Sizes, 1/4 in Dia Shank
Ideal® 35-522IDEAL® High Speed Quick Change Step Drill Bit, Imperial, 1/4 in Min Hole Diameter, 7/8 in Max Hole Diameter, Steel, 11 Hole Sizes, 1/4 in Dia Shank
Ideal® 35-523IDEAL® High Speed Quick Change Step Drill Bit, Imperial, 1/4 in Min Hole Diameter, 1-1/8 in Max Hole Diameter, Steel, 16 Hole Sizes, 1/4 in Dia Shank