1. Mbere ya byose, itandukaniro riri hagati ya U Drill na Drill isanzwe ni iyo u imyitozo ikoresha igiceri cya peripheri hamwe nicyuma cyicyuma. Duhereye kuri ubu, umubano hagati ya U DOLL na Drill isanzwe cyane mubyukuri bisa niyinga ryimashini ihindura igikoresho no gusudira. , Icyuma kirashobora gusimburwa mu buryo butaziguye kitongeye gusya igishushanyo cyambarwa. Nyuma ya byose, gukoresha ibyinjiriweho bikiza ibintu kuruta imyitozo ikomeye, hamwe nubukorikori bwinjizamo byoroshye kugenzura ingano yibice.

2. U DOLL ifite gukomera neza kandi irashobora gukoresha igipimo cyimbitse, kandi diameter yo gutunganya ucukura cyane kuruta izo myitozo isanzwe, kandi ntarengwa irashobora kugera kuri D50 ~ 60mm. Nibyo, u imyitozo ntishoboka gukora kubera ibiranga byinjiza. Ni nto cyane.

3. U imyitozo ikeneye gusa gusimbuza ubwoko bumwe nicyitegererezo cyicyuma mugihe duhuye nibikoresho bitandukanye. Imyitozo ikomeye ntabwo byoroshye.