
IPadi edadayo (ekwabizwa ngokuba yiPad yesiKhokelo esiDandayo) sisikhokelo esibalulekileyo kwizixhobo ezidikayo zomngxuma onzulu (ngokukodwa iinkqubo zeBTA kunye ne-Ejector). Ngokungafaniyo neepads ezisisigxina, iipads ezidadayo zisebenzisa i-spring-loaded okanye i-hydraulic mechanism ukugcina unxibelelwano oluqhubekayo nodonga lomngxuma. Esi senzo "sidadayo" sihlawulela ngokuguquguqukayo ukuphambuka kwesixhobo, siqinisekisa ukuthe tye okungaphezulu kunye nokugqitywa komphezulu kumatshini onzulu womngxuma.
I-Deep Hole Boring Tube yeyona nto iphambili kwi-BTA (iBoring kunye ne-Trepanning Association) iinkqubo zokomba umngxuma onzulu. Yenzelwe ukucwangciswa okuphezulu kwemingxuma enzulu kunye ne-deep-to-diameter ratio (D: d) ≥ 10: 1, isetyenziswa ngokubanzi kwi-aerospace, amandla, kunye noshishino lweemoto. Iyahambelana ne-Single Tube (STS) kunye ne-Double Tube (DTS / Ejector) iinkqubo, isebenzisa i-high-pressure coolant kunye noyilo oluqinileyo ukuqinisekisa ukukhutshwa okuzinzileyo kwe-chip.