Alias: cubic feet, iron feet, inspection and feet, rectangular Square Square Square feet parallel, side feet 
 Purposes: of cast iron feet of vertical parallel box combination, applies not perpendicular to the inspection between the high-precision machinery and equipment, inspection and machine is an important tool used to check the verticality between the various machine internal. 
 Feet of cast iron: GB6092-85 standard manufacturing materials HT200-250, for perpendicularity, parallelism detection, can be measured as a 90 ° benchmark. 


 Specifications mm relative measurement of the surface parallelism 
 Adjacent sides of vertical 
 Measuring surface straightness 

 Accuracy rating um 

 0 
 A 
 2 
 0 
 A 
 2 
 0 
 A 
 2 

 200 × 200 × 30 
 4 
 8 
 16 
 1.5 
 3 
 6 
 4 
 8 
 16 

 250 × 250 × 30 
 4.5 
 9 
 18 
 2 
 8 
 8 
 4.5 
 9 
 18 

 300 × 300 × 30 
 5 
 10 
 20 
 2.3 
 9 
 9 
 5 
 10 
 20 

 400 × 400 × 40 
 6 
 12 
 24 
 2.6 
 10 
 10 
 6 
 12 
 24 

 500 × 500 × 50 
 7 
 14 
 28 
 3 
 12 
 12 
 7 
 14 
 28 

 600 × 600 × 50 
 8 
 16 
 32 
 3.5 
 14 
 14 
 8 
 16 
 32 


 Related Products: cast iron plate inspection plate 
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