30Pcs 0.7 mm Diamond Drill Bits Hole Saw Core Solid Bit Lapidary Tools

30Pcs 0.7mm Diamond Coated Hole Saw Drill Solid Bits Jewelry Gems Glass Tile Ceramic Marble Granite The diamond coated hole saw suitable for use in drill hole on jewelry, gemstone, glass, marble, tile or granite Product Specification: Product Name: Lapidary Diamond Drill Bits, Diamond Drill Bits for Stone, Gemstone Drill Bits Head diameter:  0.028" ( 0.7 mm) Total length:  1-21/32" (42mm) Drill depth:  1/8" ( 3 mm) Shank diameter:  3/32 " (2.35mm) Suitable for electric nail drill, carving machine, machinery supporting assembly with a 3/32" collet Quantity:  30 Pcs Drilling speed:  Drill a h ole i n s econds Quick Tips 1. Please add water for coolant and drill slowly 2. Never use drills while machine is in hammer action Apply to jade carving, stone carving, bone carving, glass carving etc. Used for sculpturing, precision grinding and drilling in precious stone, ceramic, glass, jewelry, alloy, shells and many the abrasive materials Use with water as a lubricant is better Adding water when use the diamond grinding head is good, can improve the sharpness and the life We Can List Any Size (Head Diameter from 1mm - 230mm) & Amount Of  This Product We will send out your order within 1-2 days after payment has been received and cleared. Please let us know if you are looking for other accessories or hardware Just a friendly reminder: The Shank diameter of grinding bit is 2.35mm (close to 3/32") There are two different collet sizes for Dremel: 3mm (1/8") or Universal 3-jaw chuck If your chuck of Dremel(models 4300-8050) 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

Returns Accepted for this item if it's within 30 Days