Izixhobo zempethuziyinxalenye ebalulekileyo kumatshini osetyenziswa kwizixhobo zokubhola ioyile negesi, zibonelela ngeenzuzo ezikhethekileyo ezenza zifaneleke kakuhle kwiimeko ezinzima zoshishino. Ezi zixhobo ziquka i-worm (inxalenye efana nesikrufu) kunye nevili le-worm (igiya edibana ne-worm), kwaye zisetyenziswa kakhulu kwizicelo ezifuna i-torque ephezulu, uyilo oluncinci, kunye nolawulo oluchanekileyo lokuhamba. Kwizixhobo zokubhola ioyile negesi, izixhobo ze-worm zidlala indima ebalulekileyo ekuqinisekiseni ukusebenza okusebenzayo nokuthembekileyo.

Enye yezona ndlela ziphambili zokusetyenziswa kweegiya ze-worm kwi-drilling rigs kukwinkqubo yokuphakamisa, enoxanduva lokuphakamisa nokwehlisa intambo yokubhola kunye nezinye izixhobo ezinzima. Ukukhupha amandla aphezulu kweegiya ze-worm kuzenza zilungele ukuphatha imithwalo emikhulu edibana nayo ngexesha lokubhola. Ukongeza, uphawu lwazo lokuzitshixa luthintela umthwalo ukuba ungatyibiliki okanye ubuye umva, nto leyo ephucula ukhuseleko kunye nozinzo ngexesha lokuphaka.

Izixhobo zempethuzikwasetyenziswa kwitafile ejikelezayo, into ephambili ejikeleza umtya wokubhola. Ulawulo oluchanekileyo lokuhamba olubonelelwa yiizixhobo zempethuIqinisekisa ukujikeleza okugudileyo nokuchanekileyo, okubalulekileyo ekugcineni ukusebenza kakuhle kokugrumba nokuthintela ukonakala kwezixhobo. Uyilo lwazo oluncinci luzivumela ukuba zingene kwindawo encinci ekhoyo kwiirigi zokugrumba, nto leyo ezenza zibe lukhetho olusebenzayo kolu setyenziso.

Enye inzuzo yee-worm gears ekubholeni ioyile negesi kukuba ziyakwazi ukusebenza phantsi kweemeko ezinzima zendalo. Ii-drill rigs zihlala zichatshazelwa kubushushu obugqithisileyo, uxinzelelo oluphezulu, kunye nezinto ezirhabaxa. Ii-worm gears, xa zenziwe ngezinto ezihlala ixesha elide njengentsimbi eqinileyo okanye ezigqunywe ngee-protective layers, zinokumelana nale mingeni kwaye zigcine ukusebenza kwazo ngokuhamba kwexesha.

Izixhobo zempethuZibaluleke kakhulu kwiirigi zokumba ioyile negesi ngenxa yomthamo wazo ophezulu we-torque, uyilo oluncinci, kunye nokukwazi ukusebenza kwiindawo ezifuna amandla amaninzi. Ukusetyenziswa kwazo kwiinkqubo zokuphakamisa, iitafile ezijikelezayo, kunye nezinye izinto ezibalulekileyo kuqinisekisa ukusebenza kakuhle, ukhuseleko, kunye nokuthembeka kwemisebenzi yokumba. Njengoko ishishini leoyile negesi liqhubeka nokukhula, izixhobo ze-worm ziya kuhlala zibubuchwepheshe obubalulekileyo bokuhlangabezana nemingeni yokumba yanamhlanje.