ILOVETOOL 7mm Diamond Inverted Cone Grinding Bit Jewelry Making Gem Pack of 10Pcs

10Pcs 7mm INVERTED CONICAL Diamond Grinding Head Needle Lapidary Carving Tools Code 70C8*2.35mm Product Specification: Product Name:Inverted Conical Grinding Bit, Inverted Cone Bur. Head Diameter:7 mm Shank Diameter:2.35mm(3/32"); Suitable for electric nail drill, carving machine with a 3/32" collet. Total length:42mm (1-21/32") Grit:150 Grit Quantity:Total 10 Pcs Head Shape:INVERTED CONICAL The speed of 2000-8000 r/min, 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. Description: Inverted Conical Shape, electroplated diamond head. 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 Shank Diameter:2.35mm(3/32"); Suitable for electric nail drill, carving machine with a 3/32" collet, NOT suitable for dremel3000.​ If your chuck of Dremel(Suitable Dremel4300-8050) has an Universal 3-jaw chuck, then the grinding bit can be installed directly. However, it is NOT suitable for dremel with 3mm 1/8" chuck(such as:models 3000,4000) If your chuck of Dremel is 3mm (1/8"), maybe you need add the Universal 3-jaw chuck for Dremel.(Our package does't contain 3-jaw chuck). We Can List Any Size (Hole Diameter from 1mm - 25mm) & Amount Of This Product

• Product Name:Diamond Burs for Stone Carving;Head Shape:Inverted Cone
• Head Diameter:7 mm,Grit:80 Coarse Grit,Shank diameter:2.35mm(3/32").
• Total length:42mm (1-21/32"), Quantity:Total 10 Pcs.
• Product use: Apply to stone carving, jade carving, Gem peeled, bone carving, egg decorating, glass carving etc.
• Note: carving must use cold water to cool the workpiece and the grinding head polishing, moment also can’t do without water