These can be used to repair damaged internal threads (tap) or external threads (die) or to cut totally new threads into a fresh drill hole or onto a plain rod of the correct material.

• Repair damaged threads.

• Cut new threads.

• Buy a T-handle if not included.

• Available as a kit with a matched drill bit.

• Consider a full tap, die and drill set.

• Always wear eye protection.

• Consider impact protection.