Features: It is made of emery and silicon carbide, which will not shed sand or chamfer and polish more sharply or wear-resisting. M10 thread is easy to install, and the clamping is more stable or or less slippery. The bevel relieves the chamfering pressure, which is convenient for bevel enlargement, grinding and polishing of existing holes. Suitable for reaming and chamfering of marble, quartz stone, ceramic tile, etc. Often installed in model 100 angle grinder or hand drill. describe: Name: Chamfering bit Diameter: 38mm Thread: M10 Applicable model: model 100 angle grinder Quantity: 1pc Material: Corundum and silicon carbide colour: gold Package Contents: 1 x Chamfering bit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. 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