Starrett 3020-4, 4" Toolmaker's Square, not graduated Brand: Starrett ID#: 3020-4 |MFGID: 3020-4 Your Price: $145.87 Quantity discounts available QuantityPrice Return Policy Add Calibration w/ Certificate? NoNoYes - Contact Me With A Quote Qty -+ Add to Cart Request Info Questions?CallCall Us864.433.9771|Mon-Fri 8-5 EST Share Print Product Info Product Information Description Starrett 3020-4, 4" Toolmaker's Square, not graduated. SpecificationsRange:4 inchAccuracy:.0002" (0.05mm)for every 6"