Rigid Stainless Steel Machinist Ruler with English/Metric Graduations

This machinist ruler, crafted in Japan by Shinwa, represents the pinnacle of precision measuring tools. Shinwa, renowned as the foremost manufacturer of such instruments in Japan, is rapidly setting the global standard. Each ruler adheres strictly to the rigorous Japanese Industrial Standards (JIS B7516 Grade 1), ensuring consistency across material quality, hardness, length, thickness, squareness of ends, finish, flatness, and straightness.

Featuring dual English/Metric markings, one side boasts 1/32nd and 1/64th inch graduations, while the reverse showcases millimeter and 0.5mm increments. The super-fine graduation marks are meticulously photo-etched and filled with black ink to ensure effortless legibility. Designed to withstand extensive use, these markings are durable and resistant to wear over time.

Constructed from SUS420J2 stainless steel hardened to HRC-40, the ruler is then coated with a smooth, hard chrome finish that not only enhances scratch and corrosion resistance but also minimizes glare under bright lighting conditions, significantly improving readability. The ruler's edges are meticulously ground straight and smoothed to perfection, ensuring no resistance when using a pencil or marking knife along its edge. Additionally, the ends are precisely squared to within 0.001 inches for utmost accuracy.

Measuring 24 inches in length, 1.25 inches in width, and 0.040 inches in thickness, this ruler comes complete with a protective vinyl sleeve for safe storage when not in use.

In summary, Shinwa's machinist ruler combines Japanese craftsmanship with stringent quality standards to deliver a tool that excels in accuracy, durability, and ease of use, making it indispensable for professionals and enthusiasts alike worldwide.

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