Specification Brand : Alfa Tools BulletPoint1 : Black Oxide finish for general purpose drilling in a wide range of materials, equipment and operating conditions BulletPoint2 : D Diameter ( 0.2460"), 2-1/2" Overall Length BulletPoint3 : 118 Degree Point Right hand Spiral Straight Shank BulletPoint4 : Manufactured to National Aerospace Standard 907, Type C BulletPoint5 : 12 per Envelope Color : Sliver CuttingAngleString : 135.0 degrees ExternallyAssignedProductIdentifier : 9586872168693 ExternallyAssignedProductIdentifier1 : 721511170937 ExternallyAssignedProductIdentifier2 : 0721511170937 ExternallyAssignedProductIdentifier3 : 00721511170937 FinishType : Black Oxide IncludedComponents : Cutting tools ItemName : Alfa Tools SM60404 Size D High-Speed Steel Screw Machine Drill Black (12 Pack) ItemPackageDimensions_Height : 0.24 inches ItemPackageDimensions_Length : 4.25 inches ItemPackageDimensions_Width : 3 inches ItemPackageQuantity : 1 ItemTypeKeyword : short-length-drill-bits Manufacturer : Alfa Tools Material : Alloy Steel Material1 : High Speed Steel Material2 : Steel ModelNumber : SM60404 NumberOfItems : 1 PartNumber : SM60404 ProductDescription : Wood Plug Core Drill Bit Set Tenon Drill Bit Cutter Step Drill Bit Set Concrete Drill Bit Set Name: 15 20 25 30 35 position drill Diameter: approx 7mm 8mm Full length: approx 78mm Package included: 1 x box 5 x locating drill 2 x hex wrench Use: Wood Drilling length: 2 Model Number: 2 Note : The rotation speed should not be too fast, otherwise it will easily produce smoke, burnt black, etc. We recommend use a drill press for increased efficiency. ProductSiteLaunchDate : 2013-07-16T02:16:35.346Z Size : other SupplierDeclaredDgHzRegulation : not_applicable SurfaceRecommendation : Alloy Steel UnitCount : 1