Yakakwirira-mhando alumina abrasives uye nebwe abrasives vanopisa chakatsindirwa.
Chigadzirwa maficha: chengetedzo yechigadzirwa, kugona kwakanyanya, kunyatsoita basa, kuwedzera kusakara, kugadzikana uye kugadzikana, iine maficha ekudzivirira kwakasimba, kusagadzikana kwekukanganisa, kupfugama kupokana, kukuya kukurumidza kumhanya, kukuya kwakatsiga, hupenyu hurefu hwebasa.
Chigadzirwa chinonyanya kushandiswa: kukuya, kubvisa ngura, kupukuta, kukuya simbi, kugaya musono kukuya, kupisa simbi chamfering, uye pamusoro penzvimbo.