Iyi mashini yimikorere yubukungu ni iyo guhita yambura no kugoreka insinga zamashanyarazi. Ikoreshwa ryinsinga yo hanze ya diameter ni 1-5mm. Uburebure bwakuweho ni 5-30mm.
Imashini ifite ibikoresho bifata insinga bishobora gukomera no gutunganya insinga mugihe utunganya insinga. Ibi byemeza neza ko kwambura insinga n'ubwiza bwo gutemwa, kimwe n'ingaruka nziza zo kugoreka, kandi birashobora no kugabanya intambwe zo gukora intoki.
Iyi mashini nubwoko bushya bwimashini ikuramo insinga, ugereranije nimashini isanzwe yo gukuramo insinga, hari ibyiza bikurikira:
1.Gukoresha uburyo bwo guhinduranya ibirenge byamashanyarazi kugirango utsinde ibirenge biremereye kugenzura ibirenge, bigabanya ubukana bwabakozi, biroroshye gukora, bizamura cyane imikorere.
2.Ibikoresho byatejwe imbere muburyo busanzwe bwo gukuramo ibyuma, bizigama igiciro cyambere cyibikoresho byo hejuru kandi gusimbuza ibyuma biroroshye.
3.Imbaraga zikoreshwa mumashini ziri hasi cyane ugereranije niyimashini isanzwe yambura.
4. Icyuma cyimashini ni umunwa umeze nka v, ingaruka zumugozi ni nziza cyane, ntizibabaza insinga z'umuringa, wabigize umwuga wa rubber.
