Hole carving knife

The carved hole embroidery, also called hollow embroidery, uses an embroider machine to install the carved hole knife or the engraving pin and other tools to play the embroidery on the embroidery fabric with the back of the hole. Its biggest characteristic is to carve hole according to the demands of pattern in the process of embroider, and to embroider a variety of pattern combinations  in the hole or edge, making the embroider surface both free and generous field flowers and exquisite and beautiful hollow flowers. The length of the needle is always 0.5mm.