Tap and Die?

 Taps and dies are cutting tools used in the machining and manufacturing of threads on bolts, screws, and other threaded parts.

A tap is a cutting tool used to create internal threads, while a die is used to create external threads.

When a hole is drilled into a material, a tap is used to cut threads into the inside of the hole. The tap is screwed into the hole, cutting and forming the threads as it moves through the material. This creates an internal thread that can be used to attach screws, bolts, or other threaded parts.

When a rod or bolt needs to be threaded, a die is used to cut external threads onto the surface of the material. The die is fitted over the rod or bolt, and as it is turned, it cuts and forms the threads on the outside surface.

Taps and dies are commonly made of high-speed steel, and are available in a variety of sizes and shapes to accommodate different thread sizes and types. They are widely used in a variety of industries, including manufacturing, automotive, construction, and plumbing.

Proper use and maintenance of taps and dies is important for maintaining their effectiveness and longevity. This includes using the correct size and type of tool for the material being threaded, lubricating the tool during use, and properly cleaning and storing the tools when not in use.