Roper Whitneys Radius Master is a must for every fabricating shop. Its a hydraulically operated, self contained unit for making radii in mild steel from 27 gauge up to 7 gauge without having to make blade adjustments and no setup. The Radius Master comes standard with 11 radii from 18 to 1 18, 316, 14, 516, 38, 716, 12, 58, 34, 78, & 1. Special size radii may also be ordered up to 3 maximum radii. Specifications: Operated on 115 volts 1.0 amp and 80 psi shop air with safety foot switch as standard equipment. Quick Reference Support Table Included.