PEC Tools 12" 300 mm English / Metric black chrome, "high contrast" machinist ruler with markings .5mm, mm 1/32" and 1/64" 100% Made in USA by PEC Tools Products Engineering Company English / Metric markings with mm and .5 mm one one side and quick-reading 1/32" and 1/64" on reverse Rigid 12" ruler is 1.00" wide and .036" thick Sides ground parallel and ends are accurately ground square to allow readings from both ends "High-contrast" easy to read black chrome finish