Specification Brand : Dies - Round - NPT BulletPoint1 : Size: 2"-11 1/2" National Pipe Taper BulletPoint2 : Outside Diameter of Die.: 4" BulletPoint3 : High Speed Steel Round Split Adjustable Die BulletPoint4 : For OD threading standard "2" Pipe" - the actual thread dimension is greater than 2". ItemName : 2"-11 1/2 NPT Round Pipe Die, 4" Outside Diameter - High Speed Steel - National Pipe Taper ItemTypeKeyword : round-threading-dies Manufacturer : Dies - Round - NPT Material : high speed steel MeasurementSystem : Inch PartNumber : RDPT-2-H ProductDescription : Usually held in a Die Stock. ProductSiteLaunchDate : 2005-02-13T00:00:00.000Z