Imyitozo ya PDC bits nozzles, igaragaramo imiterere yoroshye, imbaraga nyinshi, irwanya kwambara cyane, hamwe n’ingaruka zikomeye, ni byo biranga PDC bit nozzle ni bumwe mu buryo butatu bushya bwo gucukura ku isi mu myaka ya za 1980.Imikoreshereze yumurima yerekana ko gucukura diyama ikwiranye nuburyo bworoshye kugeza hagati-bigoye kubera ibyiza byubuzima burebure bwigihe kirekire, igihe gito, kimwe na bore ihamye.