A tap and die set is a set of tools used to create screw threads on metal. The tap is a cutting tool that is used to create internal threads, while the die is a forming tool that is used to create external threads. Tap and die sets are available in a variety of sizes and thread pitches, so they can be used to create a wide range of screw threads.
Tap and die sets are an essential tool for any machinist or metalworker. They are used in a variety of applications, including automotive repair, plumbing, and electrical work. Tap and die sets are also used in the manufacture of precision instruments and machinery.