Dab tsi yog lub qhov (socket set).

Qhov (socket) wrenchyog tsim los ntawm ntau lub tes tsho nrog hexagonal qhov los yog kaum ob lub qhov thiab nruab nrog tes, adapters thiab lwm yam khoom siv.Nws yog tshwj xeeb tshaj yog haum rau twisting bolts los yog ceev nrog heev nqaim los yog sib sib zog nqus recesses.Rau cov txiv ntseej kawg los yog ntsia liaj qhov rooj kawg yog kiag li qis dua qhov sib txuas, thiab txoj kab uas hla ntawm lub concave qhov yuav siv tsis tau rau qhib-kawg wrenches los yog adjustable wrenches thiab torx wrenches, socket wrenches yog siv.Tsis tas li ntawd, qhov chaw ntawm cov ntsia liaj qhov rooj yog txwv, thiab lub qhov (socket wrenches) tsuas yog siv tau xwb.Lub tes tsho tau muab faib ua metric thiab imperial systems.Txawm hais tias lub sab hauv concave zoo li lub tes tsho yog tib yam, lub sab nraud txoj kab uas hla, ntev, thiab lwm yam yog tsim los rau cov duab thiab qhov loj ntawm cov khoom siv sib xws.Lub teb chaws tsis muaj cov kev cai sib xws, yog li kev tsim lub tes tsho yog qhov hloov tau yooj yim thiab ua tau raws li cov kev xav tau ntawm cov pej xeem.Qhov (socket) wrenchesyog feem ntau nruab nrog ib txheej ntawm lub qhov (socket) taub hau ntawm ntau yam specifications, nrog rau cov viav vias tes, adapters, universal pob qij txha,ntswj ntsia hlaupob qij txha, lub luj tshib, thiab lwm yam rau inserting hexagonal txiv ntseej.Lub qhov (socket) lub taub hau ntawm lub qhov (socket) yog ib tug concave hexagonal lub tog raj kheej;cov ciaj ntswj feem ntau yog ua los ntawm carbon structural steel los yog alloy structural steel, lubciaj ntswjlub taub hau muaj ib tug predetermined hardness, thiab qhov nruab nrab thiab kov qhov chaw yog elastic.Nws muaj ob tug yog vim li cas rau lub lengthening ntawm lub tes tsho: ib tug yog hais tias nws yuav tsum tau yooj yim mus txog rau qhov chaw uas nyuaj mus cuag;lwm yam yog kom lengthen caj npab kom thaum tib lub zog siv, lub torque yuav loj.Nws yog yooj yim rau tshem tawm ib co tighter screws.