Izikrufu zentloko yetruss zidla ngokuba buthathaka kunalo naluphi na olunye uhlobo lwezikrufu, kodwa zikhethwa kwizicelo ezifuna imvume ephantsi ngaphezulu kwentloko.Ziyakwazi nokuguqulwa ukunciphisa ukukhutshwa nangakumbi, ngelixa zikwanyusa umphezulu wokuthwala.
Nangona amandla aphantsi ngokuthelekisa, asenokusetyenziselwa ukuqiniswa kwentsimbi ukuya kwintsimbi.Zinokugrunjwa, zicofazwe kwaye zibotshwe, zonke zihamba ngentshukumo enye ekhawulezayo, ukonga ixesha kunye nomzamo obunokuwufaka ngenye indlela.Zinokususwa kunye ne-screwdriver yentloko ye-philip.Ifumaneka ngentsimbi engatyiwa, intsimbi yekhabhoni, kunye nentsimbi yealloyi ukuthwala ukuguga ngakumbi ngelixa iyenza ikwazi ukumelana nomhlwa.
Intloko yetruss izikrufu zokuzibhomba ezenza isakhelo kufuneka zikwazi ukusika izikhonkwane zentsimbi.Zineentloko ezikhethekileyo ezenzelwe ukunciphisa itorque kodwa zinamandla okubamba akhethekileyo.Bayakwazi ukuqhuba ngeentsimbi ukuya kuthi ga kwi-intshi ye-0.125 ubukhulu kunye nesantya se-RPM ye-1500. Ziza kwiindidi zetsimbi ukuze zilungele ukusebenza kunye nokusetyenziswa.
Kungakhathaliseki ukuba izinto eziza kuqhutyelwa yintsimbi yentsimbi okanye i-gauge yensimbi enzima (phakathi kwe-12 ukuya kwi-20 gauge), i-self-drilling screws inokuxhuma ngokulula kwaye isakhelo isakhiwo.