They are used for testing the perpendicularity and calibration of machining centers and CMMs. The granite tri squares are designed with three sided triangular shape.The main usage of the granite tri squares is to test the X,Y and Z axes for all kinds of machine bases and machine parts. These triangular squares are available in different standard and customized sizes, to suit the individual requirements of the clients.

They are used for testing the perpendicularity and calibration of machining centers and CMMs. The granite tri squares are designed with three sided triangular shape.The main usage of the granite tri squares is to test the X,Y and Z axes for all kinds of machine bases and machine parts. These triangular squares are available in different standard and customized sizes, to suit the individual requirements of the clients.