Available in metric sizes as well as self-adhesive version, GN 711.2 aluminum rulers with 3.3 mm mounting holes are RoHS compliant and come in 6 horizontal and vertical configurations. Imprints resist effects of weak acids and lye solutions as well as brief exposure to solvents. Construction is of aluminum with natural anodized finish, and surfaces are imprinted in black with etched numbers and scale markings. All ruler versions are offered in lengths from 50–1,000 mm.