Fisher Squares are synonymous with accuracy. The Squares conform to BS 939 B (DIN875) for Squareness of blade with the edges parallel ground. They come in different sizes and are manufactured using high quality carbon steel with a hardened and tempered blade, with an accuracy tolerance of 0.024mm. Still being produced in England as they have been since 1946, they are the choice of professionals who demand a lifetime of accuracy. Fisher also make Steel Rules and Combination Squares. Toolstop have a selection of the Fisher range of precision tools available for purchase now on our website.