Includes high-speed steel tap, drill bit, installation tool, and various lengths of inserts (4 - 12 inserts for each kit, depending on size). 

Includes high-speed steel tap, drill bit, installation tool, and 5 -15 inserts, depending on size.

Designed for automotive and other simple equipment repair. Includes carbon steel tap, installation tool, and various lengths of inserts (6 - 12 inserts for each kit, depending on size).