Starrett 4" Stainless Precision Plain Square

Starrett Model No. 3020-4 4" Stainless Precision Plain Square Accuracy to 0.005mm (.0002") for every 150mm (6") Hardened, ground & lapped stainless steel construction on both the blade & the beam Product Description Specs   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.  Made in China. Product Model # Starrett 4" Stainless Precision Plain Square 3020-4  | EDP #: 12226      For California Residents:    WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov    WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood