Mphero ya Hammer ndi yomwe imagwiritsidwa ntchito kwambiri pogaya komanso pakati pa akale kwambiri. Mphero za nyundo zimakhala ndi nyundo zingapo (nthawi zambiri zinayi kapena kuposerapo) zokhomeredwa pa tsinde lapakati ndipo zimatsekeredwa m'bokosi lachitsulo lolimba. Zimapanga kuchepetsa kukula ndi mphamvu.
Zipangizo zomwe zimagayidwa zimakhudzidwa ndi zidutswa zazitsulo zolimba zamakona anayi (nyundo ya ganged) zomwe zimazungulira mothamanga kwambiri mkati mwa chipindacho. Nyundo zogwedezeka kwambiri izi (kuchokera ku shaft yapakati) zimayenda mothamanga kwambiri zomwe zimapangitsa kuti chakudya chiphwanyike.
Kapangidwe kabwino kwambiri kopangitsa kuti pakhale kutseketsa pa intaneti kapena pa intaneti.