These cutters are made entirely from a solid alloy of tungsten, cobalt, chromium and vanadium to have cutting edges that are very sharp and very hard. The cutting edges are hardened by a special heat-treating process to a hardness exceeding 67 on the Rockwell C scale. The hardness of the edges extends to a significant case depth. The razor-sharp edges cut hard wire in stainless steel, nickel, Nitinol (nickel and titanium), and tungsten as fine as 0.025mm (0.001"). Generally, the maximum wire diameter is 0.20mm (0.008"). Precision cutting of very fine wire is achieved with Tronex cutters through an especially fine joint design. The joint incorporates a hardened screw/nut combination, matched bearing rings and a delrin washer. They cut flush, leaving ends smooth and free of burrs and feature stainless steel springs, cushion grips and an anti-dulling protection device. *Steel wire diameter cutting capacity |