GZ01003 – Groz Precision Engineers Square 150mm x 100mm Hardened spring steel blades are permanently fixed to the stock by means of tapered self locking rivets which ensure complete rigidity. 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 burr or dirt. Measured From: Inner Edge of Stock To End of Blade X Edge of Stock to Outer Edge of Blade