Definition & Meaning of "tap and die"

What is a "tap and die"?

A tap and die set is a tool used for creating threads on metal or other hard materials. The tap is used to cut internal threads, or threads inside a hole, while the die is used to create external threads, or threads on the outside of a rod or bolt. These tools are essential in creating threaded connections for fasteners, such as screws or bolts. A tap and die set typically includes various sizes and thread patterns to accommodate different threading needs. The process allows for precise and durable threading, making it important in mechanical and metalworking tasks.