Ibisobanuro birambuye
Mu bice binini bicukurwamo amabuye y'agaciro na kariyeri, ibikoresho byo gucukura inyundo byo hejuru ni ibikoresho byo gucukura amabuye. Nubujyakuzimu bwa metero 5-15, hejuru yo gucukura inyundo hejuru birashobora gukora neza. Niba witaye ku bucukuzi bw'amabuye y'agaciro, noneho imyitozo yo hejuru ya nyundo ntagushidikanya ko wahisemo neza. Turashobora gutanga ibyuma byo hejuru byinyundo hamwe na drifter ihamye mubushinwa. Mugihe kimwe, adaperi yacu ya shank, inkoni ya drillage, hamwe na biti ya drill bito nayo iri hejuru.