Precision Stainless Steel Ruler for Machinists - 36 Inch

Shinwa, a leading manufacturer of measuring tools in Japan, is quickly becoming the benchmark worldwide for its high-quality machinist rulers. These rulers, made in Japan, adhere to strict Japanese Industrial Standards (JIS B7516 Grade 1) for material consistency, hardness, length, thickness, end squareness, finish, flatness, and straightness.

The rulers feature 4R markings with 1/32nd and 1/64th graduations on one side and 1/16th and 1/8th marks on the reverse. The super-fine graduation marks have been precision photo-etched and then black-filled for easy readability, ensuring they do not wear off even after years of use.

Crafted from SUS420J2 stainless steel hardened to HRC-40, these rulers are coated with a smooth, hard, and non-glare chrome. This hard chrome not only makes the rules resistant to scratches and corrosion but also greatly enhances readability in bright-light conditions by eliminating glare.

The edges of the rulers are ground straight and then smoothed, allowing for seamless scribing along the edge with a pencil or marking knife without the slightest resistance. Furthermore, the ends are ground square to within 0.001", ensuring precision.

The available size is 36 inches, with a width of 1.25 inches and a thickness of 0.040 inches. Each ruler comes with a vinyl sleeve for protection when not in use.

In summary, Shinwa's machinist rulers are a testament to Japanese craftsmanship, adhering to the highest standards and providing users with a durable, accurate, and glare-free measuring tool that is perfect for a wide range of applications.

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