Isosiyete yacu yigenga yubushakashatsi no guteza imbere disiki yihuta ya Abrasive hamwe na centre yumuringa ， ibereye gusya imitako ikunze gukoreshwa zahabu, ifeza nibindi byuma byoroshye. Igabanijemo ibice bitatu bitandukanye, hagati na byiza, kandi hagati ni umwobo wo kwishyiriraho kwaduka y'urupapuro rw'umuringa, ugomba gukoreshwa hamwe na Mandele iburyo. Mandel ikozwe mubyuma bidafite ingese ， Usibye kwishyiriraho kwaduka kworoshye, irashobora kandi kugabanya kunyeganyega kwa gusya.
Mugihe ukoresha, shyira igice cyo hasi cyumukono ucitsemo ibice, hanyuma ushyireho igice. Nyuma yigihe kinini, chip izagwa, byerekana ko elastique ya clamp idahagije, kandi clamp igomba gusimburwa.