Angle flat feet purposes: Press JB/T7977-99 standard manufacture, made of HT200-300, Face Scraping process, and this product is mainly used for inspection and repair of the machine tool guide when measuring grinding. 
 Angle flat feet Specification: (mm) 500 concave 500 convex 750 concave 750 convex 1000 concave 1000 convex 1500 concave 1500 convex 
 The angle of the flat foot angle: 45 degrees, 50 degrees, 55 degrees, 60 degrees. Users use 55 degrees for the most common. 
 Angle square foot forms: the products are divided into convex and concave in two forms 
 Specifications face straightness or flatness of two-face angle α accuracy 
 Accuracy class 
 1 2 1 2 
 Convex 45 ° 55 ° 60 ° 90 ° 120 ° 500 6 12 ± 1 ± 1.5 
 Concave 45 ° 55 ° 60 ° 90 ° 120 ° 500 6 12 ± 1 ± 1.5 
 Convex 45 ° 55 ° 60 ° 90 ° 120 ° × 750 8 15 ± 1 ± 1.5 
 Concave 45 ° 55 ° 60 ° 90 ° 120 ° × 750 8 15 ± 1 ± 1.5 
 Convex 45 ° 55 ° 60 ° 90 ° 120 ° 1000 9 18 ± 1 ± 1.5 
 Concave 45 ° 55 ° 60 ° 90 ° 120 ° 1000 9 18 ± 1 ± 1.5 
 Convex 45 ° 55 ° 60 ° 90 ° 120 ° 1500 15 30 ± 1 ± 1.5 
 Concave 45 ° 55 ° 60 ° 90 ° 120 ° 1500 15 30 ± 1 ± 1.5 


 The Botou Navistar cast material measuring 
 Tel: 5664468 13373071795 
 Contact: Xin Yue