PEC Tools 150 mm Hook Rule Rigid zero-glare machinist ruler with markings .5mm and mm

This precision 150 mm metric rigid hook rule is made in the USA by Products Engineering Company (PEC Tools), a premier tool manufacturer. Rule is made from spring tempered and hardened steel and is .750" wide by .042" thick. It has a "zero-glare" satin chrome finish that provides better rust resistance than polished steel and can be easily read in both low and bright light conditions. The sides of each rule are ground parallel and each end is accurately ground square to allow reading from either end. Metric graduations have .5mm and mm markings on both sides. Graduations are precision photo etched and then black filled for easy readability.