Specification Brand : Drill America BulletPoint : Size: 28.00mm, Material: High Speed Steel, Finish: Black Oxide, Flute Length: 7-1/8, Overall Length: 12-3/4, Shank Size: 4MT, Shank Type: Taper, Style: Taper Shank, Cutting Angle: 118, Point Type: Conventional Point, Number of Flutes: 2, Cutting Direction: Right Hand BulletPoint1 : SIZE: Cutting edge diameter: 13mm, shank diameter: 1/2 inch, flute length: 100mm/3.94 inch, total length: 152mm/5.98 inch, package content: 1Pcs x Reduced Shank Drill Bit BulletPoint2 : MATERIAL: The drill bit is made of M2 high-speed steel material, it has high hardness and wear resistance, suitable for processing medium-high hardness metal. The Nitriding Black finish enhances the corrosion resistance and wear resistance of the drill bits, effectively extending drill bit's service life. BulletPoint3 : 135-DEGREE SPLIT-POINT TIP: Provides excellent processing stability, is suitable for harder materials, and can effectively reduce the risk of cutting-edge chipping, improving drilling efficiency and hole quality. BulletPoint4 : WIDE APPLICATIONS: Suitable for high-hardness materials such as steel, alloy cast iron, stainless steel, iron, copper, aluminum alloys, and cast iron. They are also effective for use with plastics and wood. BulletPoint5 : TIP: When using a large drill bit, it’s best to start by drilling smaller holes. This makes it easier to create larger holes accurately, select the appropriate coolant when running at high speeds when using hss drills to prevent tool overheating and wear. Color : Black Oxide CuttingAngleString : 118.0 degrees ExternallyAssignedProductIdentifier1 : 887861053051 ExternallyAssignedProductIdentifier2 : 0887861053051 FinishType : Black Oxide IncludedComponents : Drill Bit ItemName : 4MT Metric Taper Shank Drill Bit Size: 28 ItemPackageDimensions_Height : 4 inches ItemPackageDimensions_Length : 12 inches ItemPackageDimensions_Width : 4 inches ItemPackageQuantity : 1 ItemTypeKeyword : reduced-shank-drill-bits Manufacturer : Qualtech Material : High Speed Steel Material1 : High Speed Steel (HSS) Material2 : High Speed Steel ModelNumber : DWDTSMM28.00 NumberOfFlutes : 2 NumberOfItems : 1 PartNumber : DWDTSMM28.00 ProductDescription : DWDTSMM28.00 Size: 28 Features: -Drill bit. -Material: High speed steel. -Made to fit morse tapered holes. -Reduces chip welding and improves chip flow. Unit Material: -Steel. Use Material: -Metal. Use: -Drill Bits. Generic Dimensions: -Product weight: 2.5 lbs. ProductSiteLaunchDate : 2011-12-11T21:45:39.537Z Size : 28.00mm Style : HSS Metric Taper Shank Drills SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 SurfaceRecommendation : Iron,Metal,Steel UnitCount : 1 UnspscCode : 27111700