Specification Brand : HARFINGTON BulletPoint : UNSTERILIZED .5mm Burr Tip for Algerbrush II BulletPoint1 : Size - Grits: 325-400 Grits; Diameter: 2.5mm / 0.1"; Head Length: 14mm / 0.55"; Shank Diameter: 2.35mm / 3/32"; Shank Length: 31mm / 1.22"; Total Length: 45mm / 1.8"; The multi-purpose tool diamond drill bit set is packaged in a sturdy plastic box for your convenience to carry and store BulletPoint2 : Material - This grinding bit is made of stainless steel, which has excellent heat and corrosion resistance, and is covered with a sharply diamond particle coating that will not fall off or deform due to repeated use BulletPoint3 : Features - The round handle design of the rotary tool diamond grinding drill bit makes it suitable for most electronic grinders, engraving machines, hanging grinders and hand drills, which is very suitable for gemstone carving, molding repair, casting cleaning, rust removal and polishing, and DIY enthusiasts BulletPoint4 : Applications - The diamond drill bit set is very suitable for home decoration and handicrafts. It is a good helper for polishing, grinding, drilling, cutting, engraving and other operations, which can be engraved on various materials, such as tiles, ceramics, marble, stone, ceramics, agate, and even hard metals such as iron and silver BulletPoint5 : Wide Use - The grinding bit is also suitable for grinding and polishing nails, which can meet all needs of removing dead skin, shaping or removing gel art nails, which is suitable for natural nails and artificial nails, suitable for nail art beginners and professionals BulletPoint6 : Color : Yellow ExternallyAssignedProductIdentifier1 : 765855303095 ExternallyAssignedProductIdentifier2 : 0765855303095 GpsrSafetyAttestation : 1 IncludedComponents : 8 pieces 3/32'' shank cylinder shape diamond burr ItemName : HARFINGTON 5pcs 325-400 Grits Diamond Grinding Bit 2.5mm Tapered Head 2.35mm Shank 14mm Length Stone Sanding Drill Bits Rotary Tool for Ceramic Glass Nails Grinding Polishing ItemPackageDimensions_Height : 15.7226 centimeters ItemPackageDimensions_Length : 1.6002 centimeters ItemPackageDimensions_Width : 9.017 centimeters ItemPackageQuantity : 1 ItemShape : Cylindrical ItemTypeKeyword : cutting-burrs Manufacturer : HARFINGTON Material : Stainless Steel MeasurementSystem1 : Imperial MeasurementSystem2 : Metric ModelName : Margin Roller Burnisher Hammer Out Porosity Pit Riveting Wheel Rotary Bur 8mm Made In Germany ModelNumber : a18122800ux0627 NumberOfFlutes : 1 NumberOfItems : 5 PartNumber : htf240929hh000447 PowerSourceType : hand_powered ProductDescription : This grinding bit is made of stainless steel, which has excellent heat and corrosion resistance, and is covered with a sharply diamond particle coating that will not fall off or deform due to repeated use The round handle design of the rotary tool diamond grinding drill bit makes it suitable for most electronic grinders, engraving machines, hanging grinders and hand drills, which is very suitable for gemstone carving, molding repair, casting cleaning, rust removal and polishing, and DIY enthusiasts The multi-purpose tool diamond drill bit set is packaged in a sturdy plastic box for your convenience to carry and store The diamond drill bit set is very suitable for home decoration and handicrafts. It is a good helper for polishing, grinding, drilling, cutting, engraving and other operations, which can be engraved on various materials, such as tiles, ceramics, marble, stone, ceramics, agate, and even hard metals such as iron and silver Wear appropriate protective equipment when using to protect your eyes ; keep the workpiece and the grinding head stable during use to avoid excessive vibration and force; the operating speed is kept between 30000~50000RPM. Exceeding the maximum speed may cause the drill bit to jump, reduce the grinding effect, and even cause the rod to bend in severe cases