Specification Brand : プロクソン(PROXXON) BulletPoint1 : Shaft diameter: φ2.35mm BulletPoint2 : Material: High BulletPoint3 : Manufacturer Part Number: No.28854 BulletPoint4 : Jewelry drill bits with 1/8 inch shank for dremel, suitable for various carving machine,lapidary equipment,flex shafts with 1/8" chuck BulletPoint5 : Head Diameter:3mm(1/8"); Heads Shapes:Cylindrical; Drill Depth:8mm(5/16"); Total Length:45mm(1-3/4") Color : Silver ExternallyAssignedProductIdentifier1 : 4952989288541 ExternallyAssignedProductIdentifier2 : 4522450294830 FinishType : Nickel IncludedComponents : grinding bits ItemName : PROXXON No.28854 Small Diameter Drill, 3 Pieces, Drill Diameter 0.02 inches (0.5 mm), Shaft Diameter 0.09 inches (2.35 mm) ItemPackageDimensions_Height : 10.8 centimeters ItemPackageDimensions_Length : 0.9 centimeters ItemPackageDimensions_Width : 3.8 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : power-drill-accessories Manufacturer : プロクソン(PROXXON) Material : Metal Material1 : Diamond Material2 : High Carbon Steel ModelNumber : No.28854 NumberOfItems : 1 PackageLevel : unit PartNumber : No.28854 ProductDescription : JINGLING 30Pcs 3mm 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 The diamond coated hole saw suitable for use in drill hole on jewelry, gemstone, marble or granite Mainly used for carving glass, jade, hard objects, mould grinding, grinding inner hole Product Specifications Heads Shapes: Cylindrical Heads Diameter: 3mm (1/8"), Solid not Hollow Shank Diameter: 3mm (close to 1/8"); Suitable for dremel, various carving machine, flex shafts with 1/8" chuck Drill Depth: 8mm(5/16") Total Length: 45mm(1-3/4") Material: High Carbon Steel, Diamond Grit: 120 (medium); Premium type diamond coated grit 120, more durable than ordinary diamond drill bit set Quantity: 30Pcs Exquisite production craftsmanship, excellent quality The diamond tipped drill bit is made of carbon steel and GR-2 quanlity diamond powder, making these rock carving tools particularly sturdy, sharp, durable and long lasting as well. Suitable for drilling holes in rocks, sea glass,shells, ceramic, jewelry, etc. 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. 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. Application: Grinding, Drilling Recommended speed: 24000 RPM 2mm diamond tipped drill bit is ideal tools for dremel accessories and jewelry drill kit ProductSiteLaunchDate : 2013-05-18T22:01:40.942Z Size : 0.5mm SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 SurfaceRecommendation : Metal UnitCount : 3 UnspscCode : 27111700