Litiiso tsa ho qetela tsa mechine kapa litiiso tse boima li etselitsoe lisebelisoa tsa rotary libakeng tse thata haholo moo li ka mamellang ho roala ho matla haholo le ho thibela ho kena ha mecha ea litaba ea ka ntle e senyang.Litiiso tsa ho qetela tsa mechine li tsejoa e le litiiso tse boima, litiiso tsa ho qetela, litiiso tse phaphametseng, litiiso tsa bophelo, litiiso tsa Toric, le litiiso tse ngata tsa cone.