Le sethi yesondo lezikelemu neworm ibisetshenziswa emshinini wokunciphisa izikelemu.
Impahla yegiya lezikelemu yi-Tin Bonze, kanti i-shaft iyinsimbi engu-8620 alloy.
Imvamisa igiya lezikelemu alikwazanga ukugaya, ukunemba kwe-ISO8, futhi i-worm shaft kufanele igaywe ibe nokunemba okuphezulu njenge-ISO6-7.
Ukuhlolwa kwe-meshing kubalulekile egiyeni lezikelemu ezisethwe ngaphambi kokuthumela ngakunye.