Siffofin:
Ana amfani da layin farko na gajerun haƙora don yin aikin farko, kuma jeri na biyu na haƙora ana gyara na'ura mai kyau don kammala zaren.Hannun hagu na kayan aikin yankan yana buƙatar igiya don jujjuya yankan na hagu don rage ƙarfin yankewa kuma ƙara ƙarfin yanke kayan aiki.Dace da sarrafa manyan taurin kayan kamar quenched karfe mold karfe sama 48HRC.