Features: _x000D_ _x000D_ _x000D_ Both the inside and outside of the flat edge square are 90 degree angles _x000D_ Used for right angle measurement and can measure the vertical deviation of the inner and outer corners of the workpiece. _x000D_ It is an industrial and professional tool for assembly and platform operation. _x000D_ All faces and edges are ground and lapped for straightness and parallelism. _x000D_ The flat edge square and the crossbar are precisely ground and polished. _x000D_ There is a groove milled in the inner corner to provide clearance for burrs and debris. _x000D_ Level 2 square is especially suitable for workshop workers to produce self-tests. _x000D_ _x000D_ _x000D_ _x000D_ Specification: _x000D_ Condition: 100% Brand New _x000D_ Item Type: Right Angle Ruler _x000D_ Material: Steel _x000D_ Accuracy Level: 2 _x000D_ Optional Size: Approx. 75 x 50mm / 3 x 2in, Approx. 100 x 70mm / 3.9 x 2.8in _x000D_ _x000D_ Package List: _x000D_ 1 x Right Angle Ruler _x000D_ _x000D_ Note: _x000D_ 1. Please allow slight error due to manual measurement. Thanks for your understanding. _x000D_ 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.