Accessory for the 2001 series. When material is cut on a shear, it can creep or move from the cutting force of the shear. A Tru-Square helps prevent this. When installed it forms a right angle with the ruler and is parallel to the blades. As the material is cut it pushes in to the Tru-Square. The material can’t move and the creep is eliminated. The Tru-Square also serves as a front gauge and is an invaluable aid for making accurate, repetive cuts.