Specification Brand : KEO Cutters BulletPoint1 : Package of 6 BulletPoint2 : KEO 6-flute line of countersinks are companions to our single flute countersinks and our 3- and 4-flute center reamer line BulletPoint3 : As a rule, the more edges per revolution, the greater amount of material that may be removed. We have designed the 6-flute tools with staggered cutting edges BulletPoint4 : Country of origin: United States 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 : Steel CuttingAngleString : 120.0 degrees CutType : Non-Center Cutting EndCutType : Center ExternallyAssignedProductIdentifier : 3834563657985 ExternallyAssignedProductIdentifier1 : 618149994892 ExternallyAssignedProductIdentifier2 : 0618149994892 FinishType : Titanium Nitride GpsrSafetyAttestation : 1 HandOrientation : Right IncludedComponents : no ItemName : KEO 55105-TiN 6FLT SK Countersinks, 0.5" Cutting Diameter, 120 Degree Cutting Angle, 2" Cutting Length, 1/4" Shank Diameter, 2" Length, HSS, TiN Coating, 1/2" (Pack of 6) ItemPackageDimensions_Height : 2 inches ItemPackageDimensions_Length : 2 inches ItemPackageDimensions_Width : 0.5 inches ItemPackageQuantity : 1 ItemShape : Oval ItemTypeKeyword : single-end-countersinks Manufacturer : KEO Cutters Material : HSS MeasurementSystem : Metric ModelNumber : 55105-TiN NumberOfCuttingEdges : 12 NumberOfFlutes : 6 NumberOfItems : 6 NumberOfPieces : 5 PartNumber : 55105-TiN 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.