Imingxunya ye-Countenziqhutywa kwiBhodi yeSekethe eneentloko zentloko eflethi okanye i-gong, kodwa ayinakuthathwa (okt, iseti yemingxunya). Inguqu ephakathi kodonga lomngxunya kwi-Ostlist / i-Hight Hole Deameter kunye nodonga lweHole kwi-Hole yeHool Dole yeHiral ihambelana nomphezulu wePCB. Inxalenye eqhagamshela imingxunya emikhulu nencinci yinqwelomoya, ingenguye inqwelomoya.

I-cortorbore isetyenziselwa kakhulu iibhodi zesekethe zensimbi, ezinje nge-aluminium kunye nobhedu. Umgca wesinyithi unamandla okuphezulu kwaye akukho lula ukonakalisa ulwakhiwo lwe-PCB.
Ukuhamba-hamba, njengoko igama lithetha, likwangumngxunya, olunokudlula kwizinto okanye ulwelo lwesayizi olufanelekileyo,
Umsebenzi:
a. Isetyenziselwa ukunxibelelana kwaye ingenziwa ukuba ibethwe ngumngxunya.
b. Yenza izidanga zeenjini zepiston.
c. Ebomini, iimpahla kunye nebhulukhwe esiyinxibayo ziyimizekelo yezicelo ze-HoLE
Umngxunya we-Sriming Jikelele yiplagi yeplagi yeplagi.
Ngenxa yoyilo olukhethekileyo lonyawo olukhethekileyo, lunokuqhagamshelwa ngokuqinileyo nomngxunya ngembambano yayo emva kokufakwa emngxunyeni.
Inzuzo kukunciphisa ukuthengiswa komthetho okhutshelwa kwelokhwe ezona zinto zinjalo; Ukuba imingxunya enjalo ayikabi selupheleni, kuya kuba lula ukuyibuyisela iinxalenye. Ewe, ukutshintshwa okuphindiweyo kuya kuchaphazela ukuthembeka komngxunya.
Izikhonkwane zezinto ezifuna ukuba imingxunya yokuqhekeza ibonelelwa ngokubanzi ngomsebenzi wokwanda, kunokuba umntu enze umsebenzi.
Ezinye izinto ziya kuphinda zenziwe kwakhona emva kwexesha xa ezinye izinto ziphindwe, ngelixa ezinye zingayi kulingwa.

I-argareore yahlulwe yangamagama amathathu:
I-1. Ihamba ngokupheleleyo intloko ye-fasttener kumngxunya wenxalenye, ebizwa ngokuba yi-arbore
2. Intloko ye-frotener ayikho ngokupheleleyo kumngxunya wenqanaba lenxalenye, ebizwa ngokuba yi-colletink
I-3. Intloko ye-fasttener ayizukuhamba kwinxalenye ngokusisiseko, kwaye kuphela umngxunya onomphezulu wenxalenye obizwa ngokuba yi-roinkole
Umahluko phakathi komngxunya wokuthintela umthwalo kunye nomngxunya wokubala kukuba indawo ephezulu ye-Bolt Hole iphinde yahlaziywa: Umngxunya we-Countenk sisilinda esithe tye; Umngxunya we-Couggnnink sisixhobo se-45 se-45, esithe tyaba kunomngxunya wokukhwela.
 
Ukucocwa komngxunya ongaphezulu kwe-bolt kungayifumana intloko yeBolt, ukuze intloko ye-bolt ayiphezulu kunendawo ejikelezileyo.