American National Pipe Tapered Thread Taps from Rushmore USA Tools. Rushmore presents a variety of NPT taps for general purpose use in a variety of materials conforming to ANSI standards. Rushmore's NPT pipe taps have a tapered male and female thread and act as both the mechanical joint and the hydraulic seal. NPT taps produce threads that require sealant when joined to an external NPT threaded part. The overall tool length varies from 2-1/8" to 4-1/2". Various models are available in thread size of 1/16"-27 to 2"-11-1/2 and comes in four/five/seven straight flute design with a pitch angle of 60°. The square shank is provided to fit well into tap wrenches. The high-speed steel tool material and grounded threads ensure superior performance at high speeds. The threads are formed in the right-hand (clockwise) cutting direction. Rushmore USA NPT taps comply with all standards and specifications. It is produced from the highest quality steel to meet your manufacturing needs. Rushmore's tools are perfect for all aerospace, medical, automotive, or production machining solutions. Travers Tools offers a wide range of Rushmore USA Tools that undergo a strict quality check before they are listed on the product catalog. This USA Made brand offers quality affordable American-made tooling with the superior speed and feed that your applications require.