Cast Iron Square Keywords: cast iron foot rectangular, cast iron square, cast iron angle ruler, square to the angle ruler 
 (1) Cast Iron Square uses: mainly used for the inspection of various parts of vertical and angle of deviation, but also for the installation and maintenance of the equipment. 

 (2) common specifications for cast iron square 200 * 300-1000 * 750. 

 (3) the material of cast iron square; HT200, high hardness, not easily deformed. 
 Cast iron foot rectangular: square class of special tools, including the feet, bending 90 ° for the vertical test of machine tools, machinery and equipment and parts, install the processing position, crossed an important measurement tool in the machinery industry, it is characterized by high precision, good stability, ease of maintenance. 





 Specifications (mm) 


 Measuring the perpendicularity of the face based on 


 Face flatness or straightness 


 Base flatness or straightness 




 Accuracy rating um 




 0 


 A 


 2 


 0 


 A 


 2 


 0 


 A 


 2 
















 300 × 200 


 6 


 11 


 22 


 2 


 4 


 7 


 3 


 6 


 11 




 400 × 300 


 7 


 12 


 25 


 2 


 4 


 8 


 3.5 


 7 


 12 




 500 × 350 


 8 


 15 


 30 


 2.5 


 5 


 10 


 4 


 8 


 15 




 630 × 400 


 9 


 18 


 35 


 3 


 6 


 12 


 4.5 


 9 


 18 




 800 × 500 


 10 


 20 


 40 


 3 


 7 


 14 


 5 


 10 


 20 




 1000 × 630 


 12 


 25 


 50 


 4 


 8 


 16 


 6 


 12 


 25 




 1250 × 800 


 15 


 30 


 60 


 5 


 10 


 20 


 8 


 15 


 30 




 1500 × 1000 


 18 


 38 


 70 


 6 


 12 


 24 


 10 


 18 


 35