Amazon.com: 38" Anodized Aluminum Straight Edge Guaranteed Straight to Within .003" Over Full 38" Length 108511 : Industrial & Scientific
Amazon.com: OEMTOOLS 25355 24" Straight Edge Steel Precision Ground Machined Straight Edge, Use with Feeler Gauges for Accurate Automotive Repairs, Checks Cylinder Heads and Engine Blocks, Made in The USA : Automotive
Starrett Steel Straight Edge, Not Beveled or Graduated - 36" (900mm) Length, 7/32" (5.5mm) Thickness, 2-13/32" (60mm) Width, ± .0002” per Foot Accuracy - 380-36: Amazon.com: Industrial & Scientific