Typical applications: jeans, work clothes, sportswear, uniforms, protective clothing decorative buttons, men's suits, jackets, women's coats. It is suitable for having or without circular knots or straight sets. A keyhole for having or without a round eye. Also suitable for cored wire processing 2- level, not open hole, diameter 1-4mm chrysanthemum eye (first enough cutting tool components to meet the processing needs of open holes). Standard configuration needle thread Graber. Powerful machine penetration, thick material and cowboy material can perfectly lock eyes. The software is developed independently, and can be programmed separately, and the operation is more convenient. It has the function of automatic detecting the jump line of the needle.