Rigid 12" 4R Stainless Steel Ruler, Machinist Metal Ruler Scale with Markings...

PEC Tools Rigid 6" 4R Stainless Steel Satin Chrome Machinist Engineer Ruler S...

Tools 6" 4R rigid black chrome, "high-contrast" machinist ruler with markings...

Made in USA 6" Rigid Stainless Steel 4R Machinist Engineer Ruler / Rule 1/64,...

6" Machinist Metal Ruler, 1/25" Thick X 3/4" Wide, Satin Chrome, High Carbon ...

PEC Tools 12" Rigid Metal Ruler, Made from Premium Stainless Steel, 4R Graduatio

Shinwa 150mm Rigid Zero Glare Satin Chrome Machinist Engineer Ruler Model 13005

PEC Tools Stainless Steel Ruler Set (6"+12"), High-Contrast Machinist Ruler with