Ko ngā rawhi ngongo te nuinga o te wā e whakamahia ana hei whakau me te hiri i ngā ngongo me ngā ngongo ki ngā hononga me ngā paipa. He tino rongonui ngā rawhi ngongo taraiwa noke nā te mea ka taea te whakarite, he ngāwari ki te whakamahi, ā, kāore e hiahiatia he taputapu motuhake—he tīwiri, he taraiwa nati, he kī pūmau rānei te mea e hiahiatia ana hei tāuta me te tango. Ka honoa he tīwiri/taputapu noke mau ki ngā mokowā i roto i te whitiki hei whakarite i te diameter o te rawhi i runga i te whānuitanga kua tohua. Ka taea te tuku katoa (whakatuwhera) i te whitiki kia taea ai te tāuta i ngā rawhi ngongo ki runga i ngā ngongo me ngā ngongo kua oti kē te whakanoho. Ka whakamahia hoki ēnei mō ngā momo mahi ehara i te ngongo, pērā i te tāpiri, te hono rānei i tētahi mea ki tētahi atu. Ka taea te whakamahi anō i ngā rawhi ngongo, ā, e mōhiotia ana ko:

ngā rawhi taraiwa noke, ngā rawhi taputapu noke, ngā rawhi tīwiri noke.

Ko te rahi o te rawhi ngongo e pā ana ki te whānuitanga o te diameter o te rawhi, e rārangihia ana hei diameter iti rawa me te diameter mōrahi ka taea te whakamahi, i roto i ngā inihi; ko ētahi rawhi ka tohua hoki e te rahi o te SAE (Society of Automotive Engineers). Hei whakatau i te rahi e hiahiatia ana, tāutahia te ngongo (te ngongo rānei) ki runga i te hononga, i te paipa rānei (e whakawhanui ana i te ngongo), inehia te diameter o waho o te ngongo, kātahi ka tīpakohia he rawhi e uru ana taua diameter ki waenganui o tōna whānuitanga. Mena e mōhiotia ana te porowhita o waho o te ngongo kua tāutahia, wehea ki te 3.14 (pi) hei huri i te porowhita ki te diameter.

Ko ngā rawhi ngongo raupapa paerewa ngā mea tino noa, ā, e kitea ana i roto i ngā tono waka me ngā tono ahumahi. Ko te diameter rawhi iti rawa ko te 3/8″, ā, ko te diameter mōrahi noa ko te 8 7/16″. He 1/2″ te whānui o ā rātou whitiki me ngā tīwiri pane hex kōhao 5/16″. Ka tutuki, ka hipa rānei ēnei rawhi i ngā whakaritenga taipana SAE.

Ka whakamahia ngā rawhi ngongo raupapa iti me ngā ngongo me ngā ngongo iti te diameter pērā i ngā raina hau, wai me te wahie. Ko te diameter iti rawa ko 7/32″, ā, ko te diameter mōrahi ko te 1 3/4″. Ko te whānui o ngā whitiki he 5/16″, ā, he pane hex kōhao 1/4″ te tīwiri. Nā te iti o te rahi ka taea te tāuta ki ngā wāhi kuiti.

Ahakoa ka taea te hono i ngā rawhi ngongo mai i te pito ki te pito hei hanga i ngā rahi ritenga, i ngā rahi nui rānei, whakaarohia te whakamahi i te Create-A-Clamp hei hanga rawhi tae atu ki te 16 putu te whānui. Kei roto i ngā kete he rōra 50 putu te whānui, he 1/2″ te whānui, he ngāwari te tapahi, 20 ngā whakapiri (ngā pito me ngā whare whitiki kua kōhaohia me ngā taputapu tīwiri/kutukutu mau), me te 10 ngā hononga hei whakakotahi i ngā roa poto o ngā hononga. He kowiri tira katoa ngā wāhanga, ā, ko ngā tīwiri pane hex kōhao 5/16″ te paerewa. Kāore i rite ki ētahi atu pūnaha hononga/whiri, kāore he taputapu motuhake e hiahiatia ana engari ko ngā kutikuti tine me te tīwiri, te taraiwa hex rānei. Ka taea te tango ngāwari me te tāuta anō i ēnei rawhi ngongo taraiwa kutukutu, te whakaiti rānei, te whakanui rānei (tapahia te hononga hei whakaiti; whakamahia he hononga me te hononga tāpiri hei whakanui ake).

Ko ngā rawhi ngongo kowiri tira wāhanga, e taunakitia ana mō te nuinga o ngā mahi, he whitiki kowiri tira; ko te tīwiri me te whare whakakikorua he ātete pai ki te waikura. Mō te ātete pai ki te waikura, whiriwhiria ngā rawhi kowiri tira katoa, he whitiki, he tīwiri me te whare kowiri tira. He mea hanga ēnei rawhi ngongo kounga e tētahi kaihanga o te motu.

Mō ngā hononga taura kotahi, whakatakotoria te rawhi ngongo ki te kōhao. Mō ngā hononga taura maha, kia tino whakanohoia te rawhi ki runga ake i ngā taura. Kaua e neke atu i te taipana whakakukū e taunakitia ana mō te rawhi.

Kāore i te tūtohutia kia whakamahia ēnei rawhi ngongo me ngā ngongo ngohengohe, pērā i te silicone, nā te mea ka taea te whakaputa, te kutikuti rānei i te ngongo mā roto i ngā mokowā o te whitiki. Me whakarite hoki he pai te rawhi i whiriwhiria e koe mō te whakamahinga.