Timagwira ntchito mokhazikika popanga masamba achitsulo, omwe amagwiritsidwa ntchito kwambiri podula bwino zinthu monga chitsulo chosapanga dzimbiri, zojambulazo zamkuwa, ndi zojambulazo za aluminiyamu. Wopangidwa ndi carbide, wothira kutentha kwa vacuum, komanso nthaka yolondola, amakwanitsa kukana kuvala komanso kukana kupukuta. Amapereka mabala osalala, opanda burr, komanso opanda kupsinjika, kuwapangitsa kukhala oyenera kugwiritsa ntchito kuthamanga kwambiri, kuthamanga kwambiri. Amapereka kukhazikika kwapadera pakudula mapepala owonda komanso kudula mosalekeza kwazitsulo zofewa, kumatalikitsa moyo wa zida, kuwongolera zokolola, komanso kuchepetsa ndalama zogwirira ntchito.
