20Pcs Diamond Burs Rotary Grit Diamond (Drill Bit / Head / Diamond Tip) With Shank Diamond Burr Bits Drill Glass Metal Gemstone (Grinding Polishing Engraving Diy)

Product Description Package Content: 20Pcs Diamond Drill Bit 1.Set of 20 Diamond Burs: High Quality Alloy Shank Grinding Head with Diamond Coating Shank Diameter: 6mm Grit: 180 2. 180 Grit Diamond Burr: This rougher surface diamond grinding head works more efficiently than ordinary grinding heads 3.Wide application: This diamond rotary cutter can be used on stone glass metal wood tile ceramic marble granite and other hard materials 4.Different Shapes: This diamond cutter set includes more than 10 different shapes which can be widely used in abrasive grinding engraving cutting polishing engraving and engraving 5.Applicable machine: It is suitable for electric grinders engraving machines and pneumatic engraving pens. It can also be used for chamfering and treating grooves in mechanical parts and for finishing mechanical parts.