1.Spindle yana ɗaukar madaidaiciyar madaidaiciyar birgima, babban madaidaicin juzu'i mai jujjuyawa yanayin juzu'i don ɗaukar watsa madaidaicin ƙwallon ƙwallon ƙwallon, kyakkyawan aiki mai ƙarfi, daidaitaccen matsayi.
2.Jagorar kayan aikin injin tare da simintin simintin gyare-gyare mai jurewa da kuma bayan kashe sautin, taurin HRC45 na sama, na iya tabbatarwakwanciyar hankali na dogon lokaci na daidaiton aiki.