Rigid 4R 12 Inch Machinist Rule with Markings, Tempered Stainless Steel, Black Chrome Finish

A good quality machinist rule is an indispensable tool used by a wide range of professionals, including machinists, woodworkers, architects, draftsmen, scientists, students, and DIYers. When used correctly, a good steel rule is a surprisingly accurate measuring device. These rules are made from Japanese rust-resistant stainless steel that has been tempered, creating a measuring tool that can flex if needed but will snap back straight. The edges and ends have been ground parallel, straight, smooth, and square. Graduations are produced via a photoengraving process, creating very consistent and accurate markings with uniform line widths. Once etched, the graduations are white filled for maximal readability. The graduations are etched and not printed, so they will not wear off with prolonged use. The graduations conform to strict international EEC 1 Accuracy Standards, with an accuracy of +/- 0.2mm at 20 degrees Celsius for a 1000mm ruler. The 4R graduation marks feature quick-reading 32nds and 64ths on one side and 8ths and 16ths on the reverse. A black chrome finish provides scratch and corrosion resistance, and maximizes readability by achieving a zero-glare, high-contrast, easy-to-read finish that enhances visibility in both low and bright light conditions. Each rule comes in a vinyl storage pouch. These well-made rules will provide years of reliable service in any shop, studio, clinic, lab, classroom, or home environment.

The dimensions of these rules are as follows: Length: 12 inches Width: 1 inch Thickness: 0.04 inch Graduations: 4R (1/8 inch, 1/16 inch, 1/32 inch, 1/64 inch)

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