Specification: Shape: Pointed Granularity: 120 Grit Head Diameter: 6mm / 0.24-inch Head Length: 24mm / 0.94-inch Shank Diameter: 6mm / 1/4-inch Total Length: 60mm / 2.36-inch Material: Diamond Coated Package Content: 5 x Diamond Burrs Description: Suitable for fine detail work, cutting, engraving, carving, finishing, jade grinding and repair. Ideal grinding tool for jade, ceramic, glass, wood, precious stone and other abrasive materials. Can be installed on the electronic grinder, engraving machines, hanging mill and hand electric drill. Tips: Before use, the new tool should be tried at a low speed. If there is a jumping problem, do not continue to use it. The tool needs to be adjusted to run smoothly, otherwise the object will be unsmooth, and the tool may be prone to breakage to the handle. It is recommended to use dripping water or put it into the pool for cooling treatment to improve tool utilization and object yield. Please press gently and avoid shaking. Diamond tools are used to grind workpieces. If excessive force is applied, the grinding powder is not easy to remove. Flying chips may be generated during use. Please use jigs, non-slip finger cots and wear protective glasses when using it.