Specification Brand : IUPPA BulletPoint1 : Tungsten carbide, wear-resistant and durable, increases metal removal rate, improves ease of control, long service life. BulletPoint2 : Double-cut style has rows of cutting cut in two intersecting directions for quick material removal and a rougher finish. BulletPoint3 : Include rotary burrs, grinding head and rotary burr cutting tools etc., meet most of your drilling needs. BulletPoint4 : Machining hardness reach HRC70, for the most work, rotary burr set it can replace petiole small wheel. And their working life is 10 times longer than normal HSS burr, 200 times longer than petiole small wheel. BulletPoint5 : Shank 1/8 inch(3mm), for electric or pneumatic tool drive. Speed is about 6000-50000 rev/min. Color : Black CompatibleFastenerDescription : 0.25 inches DriveSystem : Star ExternallyAssignedProductIdentifier : 8325243146509 ItemName : IUPPA 20Pcs Carbide Rotary Tools Tungsten Carbide Double Cut Head Shank 1/8 Inch Machining Deburring Polishing Carving ItemPackageDimensions_Height : 3 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 3 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : cutting-burrs ItemTypeName : Cutting Burrs Manufacturer : IUPPA Material : S2 Steel ModelName : WALFRONT04937gudwv ModelNumber : WALFRONT04937gudwv NumberOfBoxes : 1 NumberOfItems : 1 NumberOfPieces : 12 PartNumber : YTUS20230720E19751 ProductDescription : 20Pcs carbide rotary tools, double cut head, shank 1/8 inch(3mm), for electric or pneumatic tool drive, first choice for multiple machining.