Diamond Bits 20-50mm Cone Beveling Chamfer Bits For Holes Countersink Ceramic f54<br> Electroplated Diamond 20-50mm Cone Chamfer Grinding for Head Stone Glass Chamfering for Head Sanding Tool Accessories<br> Features:<br> Diamond coated Taper Single type angle drills, use to machine chamfer hole of glass, stones etc.<br> Suitable for use in grind the edge of glass, marble, rock, gemstone, jewelry, shells, tile etc.<br> Use with water as a lubricant is better.<br> Specification:<br> Type: Cone Grinding Bits<br> Material: Diamond<br> Applications: Grinding<br> Features: Cone Grinding Bits, Electroplated Diamond, Glass Chamfering, Chamfering Sanding, Tool Accessories<br> Dimension:<br> 20: app.2cm/0.79in<br> 25: app.2.5cm/0.98in<br> 30: app.3cm/1.18in<br> 35: app.3.5cm/1.38in<br> 40: app.4cm/1.57in<br> 45: app.4.5cm/1.77in<br> 50: app.5cm/1.97in<br> Color: Silver<br> Quantity: 1 Pc<br> Note:<br> 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.<br> 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you<br> Package includes:<br> 1 Pc x Cone Grinding Bits<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store