Specification Brand : HARFINGTON BulletPoint1 : Size - 1mm 1.5mm 2mm 2.5mm 3mm dia grinding bit set, cylinder, taper, ball, and flame head shape help do different work. BulletPoint2 : Material - Made of carbon steel and the diamond coated grinding head, higher wear resistance, and durable use. BulletPoint3 : Application - Can be used for grinding most hard materials such as iron, platinum, silver, and other metals. Suitable for sharpening, deburring, grinding, and carving. BulletPoint4 : Features - Good grinding tools for precious stone jade carving, mold repairing, cast cleaning, rust polishing, and DIY hobbyists. BulletPoint5 : Note - The 1/8 Inch (3mm) shank bit fits most electronic grinders, engraving machines, hanging mills, etc. Please be careful of flying chips during use! Color : A CompatibleDevices : da sander ConstructionType : Coated ExternallyAssignedProductIdentifier : 9475311823067 ExternallyAssignedProductIdentifier1 : 0054278317056 ExternallyAssignedProductIdentifier2 : 054278317056 ItemName : HARFINGTON Diamond Grinding Carving Bits Set 1/1.5/2/2.5/3mm Various Shape Grinding Head Mounted Point 1/8 Shank for Rotary Tool ItemPackageDimensions_Height : 0.59 inches ItemPackageDimensions_Length : 5.91 inches ItemPackageDimensions_Width : 5.91 inches ItemPackageQuantity : 1 ItemTypeKeyword : abrasive-grinding-mounted-points Manufacturer : HARFINGTON Material : Ceramic Material1 : Aluminum Oxide Material2 : NorZon ModelName : 5498 ModelNumber : 5498 NumberOfItems : 1 PartNumber : hta220823hh0423 ProductDescription : 1mm 1.5mm 2mm 2.5mm 3mm dia grinding bit set, cylinder, taper, ball, and flame head shape help do different work. Made of carbon steel and the diamond coated grinding head, higher wear resistance, and durable use. This grinding drill bit is suitable for quickly cutting, sharpening, deburring, grinding, rust polishing, carving, and repairing. Good grinding tool for the rough grinding surface of materials such as jade, ceramic, glass, wood, marble, and precious stone. The 1/8 Inch (3mm) shank bit fits most electronic grinders, engraving machines, hanging mills, etc. Note - Please be careful of flying chips during use!