Tap and die set is a precision hand tool kit used for cutting, repairing, and restoring screw threads on metal, plastic, and other materials. The set typically includes taps for creating internal threads (inside holes) and dies for creating external threads (on rods, bolts, and shafts).
Typical Components
Assorted metric and/or imperial taps
Assorted dies
Tap wrench (tap holder)
Die stock (die holder)
Screw pitch gauge (in some sets)
Storage case