Check the listing for details. Benchmark Tools 12" 2 Piece Precision Combination Square 278888. Condition: New. Listed at 59.99 USD. This precision 2 piece combination square is perfect for project/part layout, machine set-up, determining level/plumb, or as a depth, height, or marking gauge. This type of square is widely used by metal and woodworkers alike. It is manufactured in accordance with the derived tolerances from the FEDERAL SPECIFICATION NO. GGG-S-656c and guaranteed to be square to within 0.004" (four thousandths of an inch) over the length of the blade. Blade: Contains a hardened and tempered no-glare satin chrome finished stainless steel blade. Blade markings are precision photo etched and then black filled for easy readability. A 24” square blade is available separately. Length accuracy guaranteed to be within +/- .2 mm as per EEC Class-1 specifications.Square head: Precision machined cast iron head with a cobalt blue baked-on finish and contains an integrated spirit level and hardened steel scribe. Comes packages in plastic case with foam cut outs.Blade length: 12"Blade width: 1"Blade thickness: 0.080"Graduations: 4R (1/64, 1/32, 1/16 and 1/8)Head height: 5"Head width: 3-5/8"Head thickness: 3/4" WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.govCalifornia Residents: This tool may contain a component part or create wood dust which contains a toxin on California's Prop 65 chemical list. WARNING: Cancer and Reproductive Harm. For more information go to https://www.p65warnings.ca.gov/ Sales Tax: Due to the 2018 Supreme Court decision regarding sales tax many states now requires us to collect sales tax. If we are now required by your state to collect and remit sales tax, sales tax will be charged on your order during checkout.