Applications: We take the selective natural diamond, gem, tungsten carbide as raw materials. The die features by uniform enameled surface of wire, and precision tolerances. It is widely matched with various enameling machines. Size of die cored2h2d1mmh1c1αβmmmmminimummaximummmmm4.04.00.31.6(0.8-1.0)d1(0.7-1.2)d110°-12°30°-40°6.04.00.82.58.06.00.83.510.06.00.85.5 Tolerance of die throatRange of die throatTolerancef no more than0.30-2.00≤0.0050.0042.01-5.20less than 0.0100.008Note: f is the difference between the minimal and maximal diameters measured on the same cross section.