Lisebelisoa:
tungsten tšepe, samente carbide, PCD
Mochini o sebetsang:
Lisebelisoa tse thata tsa ho roala thepa, haholo-holo tse sebelisetsoang lisebelisoa tsa graphite, tse loketseng litsi tsa machining, lathes, mechine ea ho cheka, joalo-joalo.