Thaum kho lub xov tooj ntawm tes, yuav tsum muaj lub hau ntswj qhib qhov rooj (qee qhov rooj xov tooj ntawm tes yog zais yam tsis muaj lub hau ntswj). Feem ntau ntawm cov ntsia hlau siv yog hexagon socket screws; Cov xov tooj ntawm tes sib txawv muaj qhov tshwj xeeb sib txawv, feem ntau T5, T6, T7, T8, thiab lwm yam. Qee cov qauv kuj tau nruab nrog cov ntsia hlau tshwj xeeb, uas yuav tsum muaj cov ntsia hlau tshwj xeeb. Tsis tas li ntawd, koj yuav tsum tau npaj ib co me me ca thiab me me torx screwdrivers.
Thaum sib piv cov cuab yeej no, cov A thiab B teeb yuav tsum tau siv, uas yuav luag suav nrog txhua lub xov tooj ntawm tes qhib cov cuab yeej. Thaum qhib rooj plaub, siv tus ntsia hlau tsim nyog raws li hom thiab qhov tshwj xeeb ntawm kev kho cov ntsia hlau ntawm rooj plaub. Yog tias qhov kev xaiv tsis tsim nyog, qhov zawj ntawm cov ntsia hlau tuaj yeem flattened, ua rau slippage.
