Selection of processing non-ferrous materials such as aluminum wire spiral groove attack, cutting light, smooth chip; machining cast iron and other brittle materials used straight slot wire tapping, rigidity and long life; processing of high hardness steel, use the special geometry and optimal design Zhuanyong wire tapping, 可以 Gaosu wire to tackle difficult problems to solve problems; Jiagong hole thread, the choice of inclination wire tapping, chip from the front outflow and rigid than the normal straight-slot Si attack high, life expectancy should be higher than 2 times. Processing non-ferrous metals and ≥ 10% elongation of the steel, the use of extruded wire tapping, you can get high-intensity, surface is smooth thread, and wire-tapping of life than cutting wire tapping by 2 times. Especially small diameter thread processing, extrusion wire tapping will increase the life of more than 5 times. Processing aspect ratio ≤ 1.5 times the through-hole threads, cast iron and aluminum materials, selection of drilling before the attack after attack drill composite wire-tapping, so you can drill and tapping the perfect combination together, and to improve drilling efficiency, and improved friends positioning accuracy, a good solution to serve multiple purposes.