The Starrett 3020 Toolmakers Stainless Steel Square is high quality, is not graduated and offers squareness accuracy to 0.005mm (.0002″ ) for every 150mm (6″). It features hardened, ground and lapped stainless steel construction on both the blade and the beam. The beam is machined at the inner corner for clearance of burr or dirt. Packed one in a plastic case.
