DUINIU 20-Piece Diamond Grinding Head Set, Diamond Burr Drill Bits, Multi-shaped Grinding Tools, Suitable for Engraving and Polishing

【Product content】You will receive 20 pieces of emery grinding heads, which are available in six shapes: cylindrical, bullet, umbrella, spherical, egg, and column arc. There are 4 cylindrical types, 3 bullets, and umbrella types. 3 pieces, 4 pieces of ball type, 3 pieces of egg shape, 3 pieces of column arc type, the size is 3*6mm, sufficient quantity to meet your polishing and engraving needs. 【Product material】Made of diamond material, it is hard, sturdy and durable. Using electroplating process and overall high temperature treatment, it has high hardness, wear resistance and long service life. It has a variety of models and a wide range of applications. 【Multiple Shape Design】In order to meet different needs, this emery grinding head has a variety of shapes to choose from, such as umbrella, cylindrical, spherical, bullet, etc. The rich shape design enables it to adapt to various working conditions and provide you with more grinding options. 【High Efficiency】The high efficiency of the emery grinding head makes the grinding process faster. Its sharp grinding surface removes material quickly, significantly reducing work time. 【Widely Used】The emery grinding head is suitable for grinding and polishing a variety of materials, such as metal, stone, ceramics, glass, etc. Whether you're a DIYer, a worker, or a professional craftsman, you can use this grinding head for a variety of grinding tasks.