Kedu akụkụ nke ihe nkedo nke nwere spiral groove nwere?

Isi ihe na-ewepụta ihe nwere oghere gburugburu

Isi square ahụ na-enye ohere ka a na-etinye onye na-ewepụta ihe na ngwaọrụ ụfọdụ. Enwere ike ijikọ ngwaọrụ ndị dị ka mgbanaka T-handle, wrench mmanya, wrench nwere ike imegharị, ma ọ bụ ihe ntụtụ vise na isi square.

Ogwe ihe na-emepụta ihe nwere oghere gburugburu

A na-eji ígwè carbon mee ogwe ahụ ma jikọta isi na ọjà.

Ngwongwo ndị na-ewepụta ihe nwere oghere gburugburu

Emebere oghere ndị ahụ ka eriri na-aga n'ihu elekere n'ime skru ma ọ bụ bolt. Mgbe onye na-ewepụta ihe na-atụgharị na elekere elekere anya, oghere conical na-egwuba n'ime ihe nkedo mebiri emebi, na-eme ka ọ tọpụ ma mesịa wepụ ya.