Cast iron square ruler

A square ruler is a box type combination with vertical parallelism,suitable for mechanical and instrument inspection,as well as inspection of non verticality between machine tools.It is an important tool used to check the non verticality between various internal components of machine tools.Cast iron square ruler is a commonly used type of square ruler.

Cast iron square rulers are also known as inspection square rulers,rectangular angle rulers,square angle rulers,parallel square rulers,and equilateral square rulers.

The cast iron square ruler has a vertically parallel frame combination,suitable for mechanical and instrument inspection,as well as inspection of non verticality between machine tools.

Cast iron square rulers are manufactured according to the GB6092-85 standard,made of HT200-250 material,used for verticality and parallelism testing,and can be used as a 90°measurement benchmark.