Specification Brand : uxcell BulletPoint1 : Specifications: Shank diameter: 3mm(1/8"), cutting edge diameter: 4mm. Fits most rotary die grinders BulletPoint2 : Long Working Life: Made of heat-treated tungsten carbide that hardness can be up to above HRA85, sharp and sturdy, long service life BulletPoint3 : Single Cut Design: Single groove rotary files are more suitable for the object density is relatively high, such as alloy steel, stainless steel, hardened steel BulletPoint4 : Versatile Use: Widely used for metalwork, tool making, model engineering, wood carving, jewelry making,welding, chamfering, casting, deburring, grinding, sculpting BulletPoint5 : Tips: Requirement of the carbide burrs rotating speed is: 4000-50000 rpm. Always ensure your burrs shank is well inserted into your collet and clamped down tightly ExternallyAssignedProductIdentifier1 : 0763022291978 ExternallyAssignedProductIdentifier2 : 763022291978 FinishType : Uncoated GpsrSafetyAttestation : 1 ItemName : uxcell Tungsten Carbide Rotary Files 1/8" Shank, Single Cut Cylindrical Radius End Rotary Burrs Tool 4mm Dia, for Die Grinder Drill Bit Alloy Steel Hard Metal Carving Polishing, 4pcs ItemPackageDimensions_Height : 11 centimeters ItemPackageDimensions_Length : 0.7 centimeters ItemPackageDimensions_Width : 6.4 centimeters ItemPackageQuantity : 4 ItemTypeKeyword : cutting-burrs Manufacturer : uxcell Material : Carbide MfgSeriesNumber : 217B ModelName : Garosap2oy83zvdg ModelNumber : Garosap2oy83zvdg NumberOfFlutes : 2 NumberOfItems : 1 PackageLevel : unit PartNumber : a24022600ux0003 ProductDescription : Description: Used for metal working in and pattern making, die sinking, surface cleaning and maintenance. Suitable for cleaning up welds, grinding weld beads, shaping parts,smoothing rough castings, or porting cylinder heads. Generally use with handheld electric or pneumatic tool drive (can also be used in machine tool), Vast used in the industries of airplane, ship building, automobile, machinery, chemistry etc.