Specification Brand : uxcell BulletPoint1 : Specifications: Shank diameter: 3mm(1/8"), cutting edge diameter: 6mm(1/4"). 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 : Double Cut Design: The groove lines are crossed. Double groove rotary files are more suitable for the object density is relatively low, such as wood, plastic, aluminum. With good milling and cutting performance, ensures high work efficiency. 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 Color : Black ExternallyAssignedProductIdentifier1 : 0608082561664 ExternallyAssignedProductIdentifier2 : 608082561664 FinishType : Silver GpsrSafetyAttestation : 1 IncludedComponents : inc ItemName : uxcell Tungsten Carbide Rotary Files 1/8" Shank, Double Cut Cylindrical Radius End Rotary Burrs Tool 6mm Dia, for Die Grinder Drill Bit Wood Soft Metal Carving Polishing, 6pcs ItemPackageDimensions_Height : 9.3 centimeters ItemPackageDimensions_Length : 1.8 centimeters ItemPackageDimensions_Width : 4.9 centimeters ItemPackageQuantity : 6 ItemTypeKeyword : cutting-burrs Manufacturer : uxcell Material : Tungsten ModelName : 6mm PartNumber : a24022700ux0109 PowerSourceType : PowerSource ProductDescription : Description: Cleaning trimming, veining and weld joint of casting, forging and weldment. They are suitable for polishing metals and plastics. Can be used with most hand power tools. Highly recommended for jewelers, lapidary use, hobbies, crafts, craft modeling, home repair and so much more. Great for filing glass, ceramics, tile, brick, plastics, wood, fiberglass, stone, rock carbide, gold, silver, metals, and anything with a hard surface.