Bakin karfe bututu ne wani irin m dogon zagaye karfe, wanda aka yadu amfani a masana'antu watsa bututu kamar man fetur, sinadaran masana'antu, likita jiyya, abinci, haske masana'antu, inji kayan aiki da inji tsarin gyara.Bugu da ƙari, lokacin lanƙwasawa da ƙarfin torsional iri ɗaya ne, nauyin yana da haske, don haka ana amfani da shi sosai wajen kera sassan injiniyoyi da tsarin injiniya.Hakanan ana amfani da ita azaman kayan ɗaki, kayan girki, da sauransu.