Specification Brand : Alfa Tools BulletPoint1 : Alfa USA hand tap - black oxide BulletPoint2 : 9/16-inch by 18 tap size, 4 flutes BulletPoint3 : Plug taps (3 to 5 threads) most common chamfer used in through or blind holes BulletPoint4 : General purpose taps can be used by hand or under power, in through (open both ends) or blind holes (closed one end); super high-speed steel, ground thread, right hand BulletPoint5 : Quantity: 3 per pack ExteriorFinish : Carbon,Carbon Steel,Steel ExternallyAssignedProductIdentifier1 : 721511576258 ExternallyAssignedProductIdentifier2 : 0721511576258 ExternallyAssignedProductIdentifier3 : 00721511576258 IncludedComponents : Alfa Tools ItemName : Alfa Tools HTP80041 9/16-18 Hs Black Oxide Alfa Hand Tap Plug (3 Pack) Made In USA, ItemPackageDimensions_Height : 0.5625 inches ItemPackageDimensions_Length : 3.5 inches ItemPackageDimensions_Width : 3.5 inches ItemPackageQuantity : 1 ItemTypeKeyword : hand-threading-taps ItemTypeName : Alfa Tools HTP80041 9/16-18 Hs Black Oxide Alfa Hand Tap Plug (3 Pack) Made in USA Manufacturer : Alfa Material : High Speed Steel MeasurementSystem : Metric ModelNumber : HTP80041 NumberOfItems : 1 PartNumber : HTP80041 ProductSiteLaunchDate : 2016-09-21T15:21:14.304Z SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1