Specification Brand : STAR USA BulletPoint1 : Solid Carbide BulletPoint2 : Shank Diameter: 5/8" BulletPoint3 : Overall Length: 3" BulletPoint4 : Combine hard cutter body and high-class cutting edge, not easy to break. BulletPoint5 : Suitable for Acrylic, double color boards, PVC, ABS, high density boards, plywood, natural wood, hardwood, etc. CutType : Taper EndCutType : Ball End ExternallyAssignedProductIdentifier : 8710601884276 FinishType : Stainless steel ItemName : 1/4" Tip Dia. x 1" Flute Length - Solid Carbide Tapered End Mill - 10 Degree Per Side, Ball End ItemShape : Round ItemTypeKeyword : tapered-end-mills Manufacturer : Star USA Material : Carbide Material1 : High Speed Steel Material2 : Tungsten Carbide MeasurementSystem1 : Imperial MeasurementSystem2 : Metric ModelNumber : modle NumberOfFlutes : 4 NumberOfItems : 1 PartNumber : 9620008 ProductDescription : Material: All tapered end mills are produced from a premium grade of super submicrograin carbide to give you the maximum hardness and toughness. This means longer cutting life with less breakage * Grinding: All flutes are hollow ground with double clearance angles. The flute face is also hollow ground and polished to assure free cutting actions with minimum of heat generation. All tools have end cutting teeth. Special grinding procedures and equipment assures a high degree on concentricity between shank and cutting flutes * Tolerances: Taper angles constant to +/- .001" per inch of flute length. Tip diameter tolerances are held at +/- .002". Shank diameter tolerances are -.0002 to -.0005". ProductSiteLaunchDate : 2014-06-17T07:00:00.000Z SurfaceRecommendation1 : Polyvinyl Chloride SurfaceRecommendation2 : Acrylic ToleranceHeld : Precision UnitCount : 1 UnspscCode : 27112803