Wannantsutsa gearsaitin kayan aikin ƙafafun tsutsotsi wanda aka yi amfani da shi a cikin jirgin ruwa. Kayan aiki 34CrNiMo6 don shaft ɗin tsutsotsi, maganin zafi: carburization 58-62HRC. Kayan aikin kayan aikin tsutsotsi CuSn12Pb1 Tin Bronze. Kayan aikin gyaran ƙafafun tsutsotsi, wanda aka fi sani da kayan aikin gyaran tsutsotsi, wani nau'in tsarin kayan aiki ne da aka saba amfani da shi a cikin jiragen ruwa. An yi shi da tsutsotsi mai siffar silinda (wanda kuma aka sani da sukurori) da kuma ƙafafun tsutsotsi, wanda kayan aikin silinda ne wanda hakora suka yanke a cikin tsarin helical. Kayan aikin gyaran tsutsotsi yana haɗuwa da tsutsotsi, yana ƙirƙirar watsa wutar lantarki mai santsi da shiru daga shaft ɗin shigarwa zuwa shaft ɗin fitarwa.
A cikin kwale-kwale, ana amfani da gear na ƙafafun tsutsotsi don rage saurin shaft ɗin propeller. Girar tsutsotsi tana rage saurin shaft ɗin shigarwa, wanda yawanci ana haɗa shi da injin, kuma tana canja wurin wannan wutar lantarki.