PEC Tools 12" 5R flexible black chrome, "High Contrast" machinist ruler with markings 1/10", 1/100", 1/32" and 1/64" 100% Made in USA by PEC Tools Products Engineering Company 12" flexible rule is .500 wide and .020 thick High-contrast easy to read black chrome finish 5R markings with 1/10, 1/100 and quick-reading 1/32 and 1/64 Sides ground parallel and enda are accurately ground square to allow readings from both ends