ILOVETOOL Diamond Grinding Bits 10mm Q Needle Concave Needle Grinding Bits Jade Carving Tools Pack of 20Pcs

20Pcs 10mm SPHERICAL CONCAVE Head Diamond Mounted Point Grinding Tip for Lapidary Carving Tools Code 100Q Product Specification: Product Name:Diamond Grinding Head, Diamond Grinding Head Nail Bit Jade Carving Burrs Stone Head Shape:SPHERICAL CONCAVE Head Quantity:Total 20Pcs Head Diameter:10mm Shank Diameter:3mm(1/8"); Suitable for dremel, electric grinder, carving machine, machinery supporting assembly with a 1/8" collet.then the grinding bit can be installed and used directly for Dremel. But it is NOT suitable for machines with 3/32 inch chuck, such as Electric Nail Drill. Total length:42mm. Grit:150 Medium. Speed: 2800-30000 RPM, electric grinder speed as high as possible. The Mounted Point can be installed on the electric grinder, hanging mill and hand electric drill (not included here). Never use drills while machine is in hammer action. Product use: Apply to stone carving, jade carving, Gem peeled, bone carving, egg decorating, glass carving etc. Used for sculpturing, dressing, precision grinding and internal grinding carbide in ceramic, glass, precious stone, alloy and many the abrasive materials Use with water as a lubricant Note: carving must use cold water to cool the workpiece and the grinding head polishing, moment also can't do without water We Can List Any Size (Hole Diameter from 0.8mm - 40mm) & Amount Of This Product

• Product Name:Diamond Grinding Bits Q Needle, Jade Carving Bits for Round Bead,Grinding Stone Eyes.
• Quantity:Total 20Pcs, Head Diameter:10mm (3/8"), Shank diameter:3mm(close to 1/8")
• Head Shape:SPHERICAL CONCAVE Head, Total length:42mm, Grit:150 Medium, Speed: 2800-30000 RPM
• Product use: Apply to stone carving, jade carving, Gem peeled, bone carving, egg decorating, glass carving etc. Used for sculpturing, dressing, precision grinding and internal grinding carbide in ceramic, glass, precious stone, alloy and many the abrasive materials.
• Use with water as a lubricant； Note: carving must use cold water to cool the workpiece and the grinding head polishing, moment also can't do without water