铸铁方箱主要用于零部件平行度、垂直度的检验和划线时支撑工件，一般为边长相同的正方体或长方体，可根据用户要求制作各种规格和等高方箱及长方筒。
铸铁方箱：按/T3411.56-99标准制造，材料HT200。
铸铁(tie)方箱主要用(yong)(yong)于(yu)零部件的(de)(de)(de)平行度(du)、垂(chui)直(zhi)(zhi)度(du)等的(de)(de)(de)检(jian)验和划(hua)线(xian)(xian)(xian)。方箱是用(yong)(yong)铸铁(tie)或钢(gang)材(cai)制成的(de)(de)(de)具(ju)体(ti)6个(ge)(ge)工(gong)(gong)(gong)作(zuo)(zuo)面(mian)的(de)(de)(de)空腔正方体(ti)，其(qi)中(zhong)一个(ge)(ge)工(gong)(gong)(gong)作(zuo)(zuo)面(mian)上有(you)V型槽。铸铁(tie)方箱要求：方箱各工(gong)(gong)(gong)作(zuo)(zuo)面(mian)不能有(you)锈迹、划(hua)痕、裂纹、凹陷以及影响计量性能的(de)(de)(de)其(qi)他缺陷。非工(gong)(gong)(gong)作(zuo)(zuo)面(mian)应(ying)清砂涂(tu)漆，棱边倒角(jiao)。在测得的(de)(de)(de)各个(ge)(ge)位置(zhi)的(de)(de)(de)直(zhi)(zhi)线(xian)(xian)(xian)中(zhong)误(wu)差方向一致时(shi)取其(qi)大(da)值(zhi)，当误(wu)差方向不一致时(shi)取其(qi)大(da)正差与大(da)负(fu)差值(zhi)之和，为该受检(jian)面(mian)平面(mian)的(de)(de)(de)平面(mian)度(du)。在方箱内壁(bi)应(ying)有(you)标(biao)牌，并标(biao)有(you)规格尺(chi)寸，级别出(chu)厂(chang)编(bian)号、制造厂(chang)名称。作(zuo)(zuo)为工(gong)(gong)(gong)业生产车间里钳工(gong)(gong)(gong)做立体(ti)划(hua)线(xian)(xian)(xian)的(de)(de)(de)工(gong)(gong)(gong)具(ju)；也(ye)(ye)可以检(jian)测机械零件的(de)(de)(de)平行度(du)和垂(chui)直(zhi)(zhi)度(du)；也(ye)(ye)可做工(gong)(gong)(gong)作(zuo)(zuo)台使(shi)用(yong)(yong)。上面(mian)带(dai)有(you)支架，用(yong)(yong)于(yu)检(jian)验或划(hua)jingmi工(gong)(gong)(gong)件的(de)(de)(de)任意角(jiao)度(du)线(xian)(xian)(xian)。