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Details:
Constructed of 12.5 - 31.7 cm long non-glare gold anodized aluminum with black calibrations in N,HO,O and G (1/24) scales, 64th and mm along with a guide for converting decimal equivalents to drill size for small screws. The black photo-anodized calibrations will not fade or chip when cleaned with solvents. Often used by architects, engineers, graphic artists, and office personnel. * Imperial Measurement Ruler *