I-lead ephindwe kabiniizixhobo zempethu kwaye ivili le-worm luhlobo lwenkqubo yegiya esetyenziselwa ukudlulisa amandla. Iqulathe i-worm, eyinxalenye ye-cylindrical efana nesikrufu enamazinyo e-helical, kunye nevili le-worm, eliyigiya enamazinyo adibanisa ne-worm.
Igama elithi dual lead libhekisa kwinto yokuba i-worm ineeseti ezimbini zamazinyo, okanye imisonto, ezijikeleza isilinda kwii-engile ezahlukeneyo. Olu yilo lubonelela ngomlinganiselo ophezulu wegiya xa kuthelekiswa ne-single lead worm, nto leyo ethetha ukuba ivili le-worm liya kujikeleza amaxesha amaninzi ngokujikeleza kwe-worm.
Inzuzo yokusebenzisa ivili le-worm elinomgca ophindwe kabini kunye nevili le-worm kukuba linokufikelela kumlinganiselo omkhulu wegiya kuyilo oluncinci, nto leyo eyenza ukuba libe luncedo kwiindawo apho indawo incinci khona. Likwayazitshixa ngokwalo, nto leyo ethetha ukuba i-worm ingayibamba ivili le-worm endaweni yayo ngaphandle kwesidingo se-brake okanye enye indlela yokutshixa.
Iinkqubo ezimbini zamavili eembungu kunye neembungu ze-worm zisetyenziswa kakhulu koomatshini nakwizixhobo ezifana neenkqubo zokuhambisa, izixhobo zokuphakamisa, kunye nezixhobo zoomatshini.