For setting up & checking jobs where extreme accuracy is required. Both the blade and stock are precisely ground to ensure straightness and parallelism. Working edges of the blades are lapped which further enhances accuracy. A groove on the inner corner of the stock aids in the clearance of burrs and dirt.
Ss/A/3 Groz Precision Engineers Square, 75Mm
Blade Length: 75mm
Stock Length: 60mm
Straightness of blade edges: 0.00031 inch / 8 microns
Flatness of working faces of stock: 0.00016 inch / 4 microns
Parallelism of working faces of stock: 0.0002 inch / 5 microns