Chida ichi ndi chida chapadziko lonse lapansi cholemetsa chomwe chili ndi njira zitatu zowongolera, zomwe ndizoyenera kutembenuza bwalo lakunja, nkhope yomaliza, grooving, kudula, kutopa, kutembenuza dzenje lamkati, ulusi wokhotakhota ndi njira zina zamagawo a shaft, cylindrical ndi mbale mbali. zipangizo zosiyanasiyana zokhala ndi zitsulo zothamanga kwambiri komanso zida zachitsulo zolimba.Ndipo mutha kugwiritsa ntchito slide yapamwamba (kudzera m'magiya osinthira) kutembenuza ulusi wosiyanasiyana ndi utali wamfupi kuposa 600mm (ulusi wamtali wonse ukhoza kukonzedwa kuti upangire madongosolo apadera).