These premium straight edges are meticulously ground and lapped for straightness and parallelism, and they feature a beveled edge with a precision 1/64" scale, which means they double as precision rulers. Available in 12", 24" and 36" lengths, they feature a hanging hole, and include a protective case if you prefer to store them in a drawer. Technical Details: iGAGING Precision Straight Edges are made of hardened steel. Accuracy: 0.001". Thickness: 3/16". Width: 1-9/16". Satin Chrome finish. All edges have true right angles. Bevel edge has 1/64" precision scale in US standard.

Warning: Cancer and Reproductive Harm. www.p65warnings.ca.gov