JINGLING 2.5mm Diamond Drill Bits for Stone Ceramic Glass 1/8" Shank Lapidary Supplies Kit Jewelry Making Tool for Dremel Pack of 30Pcs

• 2.5mm Diamond tipped drill bit is ideal tools for dremel accessories and jewelry drill kit
• Used for drilling holes in rocks,sea glass,shells,ceramic,etc. For making bead,earrings,pendents
• Premium type diamond coated grit 120, more durable than ordinary diamond drill bit set
• Jewelry drill bits with 1/8 inch shank for dremel, suitable for various carving machine,lapidary equipment,flex shafts with 1/8" chuck
• Head Diameter:2.5mm(close to 3/32"); Heads Shapes:Cylindrical; Drill Depth:10mm(3/8"); Total Length:45mm(1-3/4")

JINGLING Premium Quality 30Pcs 2.5mm (3/32") Diamond Drill Bits with 1/8" Shank for Dremel Jewelry Making Lapidary Supplies Tools for Gemstone Sea Glass Shells Rocks Specifications and shapes: Product Name:Diamond Drill Bits For Stone,Tile Drill Bits Ceramic Diamond,Drill for Jewelry Making Heads Shapes: Cylindrical Heads Diameter: 2.5mm (close to 3/32"), Solid not Hollow Shank Diameter: 3mm (close to 1/8") Suitable for dremel, various carving machine,lapidary equipment,flex shafts with 1/8" chuck Drill Depth: 10mm(3/8") Total Length: 45mm(1-3/4") Grit: 120 (medium) Premium type diamond coated grit 120, more durable than ordinary diamond drill bit set Recommended speed: 24000 RPM or more 2mm diamond tipped drill bit is ideal tools for dremel accessories and jewelry drill kit Suitable for drilling holes in rocks, sea glass,shells, ceramic, jewelry, etc. Jewelry drill bits are used to make beads, earrings, pendants Use with water as a lubricant is better Keep the hole you're drilling constantly bathed in water or feed water to the drilling spot. If there is not enough water to cool, the diamond at the front of the stone drill bit will quickly wear off because of high temperature. Light pressure and slow feed rate are beneficial for chip removal, allowing the head of the glass drill bits to continuously grind the material being processed. Just a friendly reminder: The Shank diameter of grinding bit is 3mm (close to 1/8 inch) If your chuck of Dremel is 3mm (1/8 inch) or Universal 3-jaw chuck, then the diamond tip drill bit can be installed directly However, it is NOT suitable for machines with 3/32 inch chuck, such as Electric Nail Drill