花崗石直角尺用于零件、工作目機主軸及各種直角度之測量，250 160mm以上有圓孔加工，減輕重量，好取用。花崗石V形塊精度：編號No規格Dimensionmm測量面與基準面垂直度Perpendicularitybetweenmeasuring andstandardsurface( m)測量面平面度直線度flatnessandbeelineofthemeasuringsurfaces( m)基面平面度直線度flatnessandbeelineofthestandardsurface( m)精度00Grade00精度0Grade0精度00Grade00精度0Grade0精度00Grade00精度0Grade0107-2001107-2002107-2003107-2004107-2005107-2006100 63 16160 100 20250 160 25400 250 40630 400 631000 630 80222.53.54.56445791211111.52.51222.53511111.52.51222.535