3mm Shank Cylinder Rotary Burr Drill Bit 8/10/12/14/16mm Grinding For Jade Glass Carving Engraving Abrasive ToolsTools > Abrasive Tools & Abrasives2,11 USD (≈ 1,89 €)2,48 USDDisponibileSold by AliExpress WWVai al negozio