Specification Brand : uxcell BulletPoint : Price For: Each Flute Type: Spiral Finish: TiN Coated Item: Double End Drill/Countersink Number of Flutes: 2 Countersink Style: Plain Material: High Speed Steel Cutting Direction: Right Hand Size: #3 Body Dia.: 1/4" Point Dia.: 7/64" Overall Length: 2" Included Angle: 82 Degrees Country of Origin (subject to change): United States BulletPoint1 : Specifications: Shank diameter: 3mm(1/8"), cutting edge diameter: 3mm. 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 lines are crossed. Double groove rotary files are more suitable for the object density is relatively low, such as Wood, Plastic, Aluminum 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 CuttingAngleString : 82.0 degrees ExternallyAssignedProductIdentifier1 : 0816054024950 ExternallyAssignedProductIdentifier2 : 816054024950 FinishType : Titanium Nitride ItemName : uxcell Tungsten Carbide Rotary Files 1/8" Shank, Double Cut Taper Shape Rotary Burrs Tool 3mm Dia, for Die Grinder Drill Bit Wood Soft Metal Carving Polishing Model Engineering ItemPackageDimensions_Height : 14 centimeters ItemPackageDimensions_Length : 1.8 centimeters ItemPackageDimensions_Width : 9.3 centimeters ItemPackageQuantity : 1 ItemShape : Cone ItemTypeKeyword : cutting-burs Manufacturer : uxcell Material : Carbide MeasurementSystem : Inch ModelNumber : a18121200ux0702 NumberOfFlutes : 2 NumberOfItems : 1 PartNumber : a18121200ux0702 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.