The Roper Whitney Radius Master is 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 or setup. It comes standard with 11 radii from 1/8″ to 1″ – 1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 5/8, 3/4, 7/8, & 1″. Special size radii may also be ordered up to 3″ maximum radii.