Uxcell Diamond Grinding Burrs Drill Bit 3/32 Inch Shank 1.5Mm Dia Cylindrical Concave Head Diamond Mounted Points Bit For Carving Polishing Jade Jewelry Amber Stone Beeswax Glass 40Pcs

Specification Head: 1.5 x 4mm / 0.059 x 0.16 inch Shank diameter: 2.35mm / 0.09 inch Total length: 42mm / 1.65 inch Shape: Cylindrical concave head Package includes: 40pcs Diamond mounting Description: Electroplated diamond has the characteristics of high hardness and good wear resistance. The chamfered round handle is made of hard iron, which can withstand a certain amount of pressure and tension, has high stability and is not easily deformed. Easy to use, used with electric grinders, electric drills and other power tools. Specially used for shaping and grinding spherical beads, it can produce clean, accurate and complete spherical beads in a few minutes. The chamfered round handle makes the clamping more convenient and firm, and the working process is more stable. Suitable for gem and jade carving, casting cleaning, rust removal and polishing, inner hole grinding, and a good grinding tool for DIY enthusiasts. In addition, it is also suitable for engraving, grinding, trimming, and fine grinding of jade, amber, stone, beeswax, glass, etc. When installing a new tool, tap it gently with a wrench or adjust the chuck until the tool remains stable; when drilling, control the force and keep it stable to avoid shaking or excessive force to damage the tool; after use, be sure to add water to cool it to avoid diamond ink.