Abvantbuwan amfãni: Wanda aka san shi ne da fifikon aikinta da kyakkyawan kwanciyar hankali. Yana samar da babban aiki a aikace-aikacen lantarki saboda don kayan kwalliyar jan karfe.

Rashin daidaituwa: na iya zama mafi tsada fiye da sauran nau'ikan wayoyi saboda girman jan ƙarfe. Hakanan yana iya zama mafi nauyi, wanda zai iya shafar amfanin sa a wasu aikace-aikace.

Filayen aikace-aikacen: Wurare da aka yi amfani da shi a cikin Motors, masu canzawa, da na'urorin lantarki inda babban aiki da dogaro da abin dogaro ne.