Fowler's Radius Gage, made of finely finished high quality steel, is used by layout men, tool and diemakers, screw machine operators, machinists, pattern-makers and mechanics. Features an eccentric mounting for clearance between leaf and case when gage is opened; each leaf stamped with radius size. Leaves shaped for use in any position or angle to measure fillets and radii in corners or against shoulders. Held securely in desired position by a locking device. Use to lay out and check radii of tools, dies, patterns, etc.