Kumenyekanisha KJ421 Hydraulic Umuyoboro wa Boring Rig - igisubizo cyibanze kubyo ukeneye byose birambiranye.Iyi mashini nini yo gucukura yagenewe byumwihariko guhuza tunel zingana, hamwe nibice byambukiranya metero kare 16-68.Uruganda rwo gucukura rufite ubushobozi bwo gucukura cyane, rushobora gucukura umwobo uturika hamwe na bolts mu mwanya uhagaze, uhengamye kandi utambitse, kandi ni igikoresho cyingirakamaro mu kubaka umuyoboro.