Bitewe n'inyungu z'ingenzi zo gukora neza cyane, ubwenge, gutuza no kuzigama ingufu, byabaye igikoresho cy'ingenzi ku bigo mu kugabanya ikiguzi, kongera imikorere no gukora umusaruro udashingiye ku bakozi.
Nk'igikoresho cy'ingenzi gikenewe cyane mu buryo bwikora mu gupakira, imashini ipakurura amasanduku ubwayo ishobora kurangiza mu buryo bwikora igikorwa cyose cyo gufata amakarito, kuyapfundura, kuyapfunyika, kuyafunga no kuyatwara.