Pittsburgh 40pc. Carbon Steel SAE Tap and Die Set with Case – Model #62831 is a high-quality pipe tool set designed for creating right-hand threads in pipes. This set includes various tap and die sizes to accommodate different pipe inner diameters, as shown in the pictures. NPT thread standard ensures compatibility with standard NPT threads. Made in China, this set comes with included attachments for ease of use. Ideal for professionals in the business and industrial sectors, this tap and die set by Pittsburgh is a reliable option for pipe threading tasks.