Wrench latches muaj ntau lub npe nyob ntawm seb hom, tab sis cov ntsiab lus tseem ceeb feem ntau hu ua ratchet pawl, txawm tias muaj lwm cov npe.
Lub ratchet pawl yog ib qho tseem ceeb ntawm cov ciaj ntswj. Nws muaj cov hniav thiab siv lub caij nplooj ntoos hlav los yog elastic qauv los koom nrog lub ratchet iav rau unidirectional locking los yog hloov.
Lub ratchet latch lossis ratchet xauv yog ib qho ua tiav, suav nrog lub ratchet pawl, caij nplooj ntoos hlav, thiab lwm yam, thiab muaj nyob rau hauv ratchet thiab adjustable wrench adjustable mechanisms.
Adjustable wrench latches feem ntau hu ua kho ratchet pawls lossis cab iav latches. Tig tus cab iav txav lub ratchet pawl txhawm rau txhawm rau qhib qhov loj; cov qauv qub kuj hu ua nres pawls.
Ratchet wrench latches tsuas yog hu ua ratchet pawls. Lawv ua haujlwm nrog ratchet iav rau unidirectional kev sib hloov yam tsis muaj slippage; bidirectional latches muaj xws li ob chav ratchet pawl latches.
Cov yeeb nkab ciaj ntswj yog hu ua lub puab tsaig latches lossis ratchet locking mechanisms. Lub ratchet pawl koom nrog ib tug toothed phaj kom xauv lub puab tsaig lub puab tsaig.
Lub latch txuas lub qhov (socket wrench) rau lub ciaj ntswj yog hu ua lub pob-load latch, uas siv cov pob thiab lub caij nplooj ntoos hlav rau kev xauv nrawm.
Ib co adjustable ciaj ntswj latches yog nyob rau hauv daim ntawv ntawm cov nyees khawm los yog pob qhov rooj; nias los yog rotating lawv locks lub kho mechanism, thiab cov no yog feem ntau yuam kev hu ua latches.
Hauv qee thaj chaw lossis cov npe laus, ratchet wrench latches yog hu ua check pawls, hais txog lawv txoj kev kuaj xyuas ib leeg.