Drill String Fishing Magnet ndi imodzi mwa zida zothandizira kuonetsetsa kuti kubowola kwabwinobwino komanso kuyeretsa dzenje pokonza ngozi yapamtunda. Izi ndizomwe zimagwira ntchito limodzi ndi nsapato zopera mu ntchito yausodzi, zomwe zimakhala zosiyana ndi njira yapitayi yokweza chobowola pambuyo pa mphero, ndiyeno kugwirizanitsa chingwe chobowola ndi chida champhamvu cha maginito chopha nsomba kuti chitsike pansi pa chitsime chotsuka pansi. hole , kupulumutsa ulendo wopita ku ntchito ya chitsime, zomwe sizimangopulumutsa mtengo wobowola, komanso zimapulumutsa nthawi yopha nsomba.