Manufactured from hardened tempered stainless steel that has been precisely ground to produce parallel edges so that the square has an exact right angle on both the inside and outside of the stock and blade, to ensure accuracy. _x000D_ _x000D_ _x000D_ Features and Benefits_x000D_ Precision ground to produce parallel edges_x000D_ Hardened and tempered steel for durability_x000D_ Satin chrome finish_x000D_ Light weight for easy use_x000D_ _x000D_ _x000D_ Specifications_x000D_ Conforms to BS939 Grade B_x000D_ _x000D_ _x000D_ Typical Applications_x000D_ Engineering_x000D_ Workshop