12" / 300mm Stainless Steel Ruler Metric & Imperial Engineers Rule

300mm (12″) Satin Finish Stainless Steel Rule Quality stainless steel rule graduated in cm/mm on the upper edge and 1/64″, 1/32″, 1/16″, 1/8″ on the lower edge. Complete with conversion scales on reverse showing in-mm, WW-UNF, and tap drill sizes.

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