Набор из 5 бит с алмазным напылением для точильного инструмента Dremel с хвостовиком 3 мм в форме пули, зернистостью 60, для обработки камня.

5pcs 3mm Shank Diamond Grinding Head Bullet Set Coated Mounted Bit Burr 60 Grit for Stone Dremel Rotary Tool Accessories                               Features: Thick and durable, high-strength diamond, made of synthetic diamond and high-strength diamond. The pole is made of high wear-resistant, high-hardness alloy material, which is more durable!                                                                                                                   Precautions:   1. The speed is as high as possible, and the general requirement is that the line speed is not less than 10-20 meters per second! 2. Need to add water to cool, if you do not add water to cool the diamond, it may lead to graphitization due to overheating. 3. Need to gently press down, too much force will cause the powder to be difficult to discharge 4. Check if the tool is beating. If the tool is beating, it can't work directly!   Weight：4-12g/pcs ​