{"product_id":"spi-13-897-4-steel-rule-12-inch-5r-rigid-black-chrome","title":"Spi 13-897-4 Steel Rule 12 Inch 5R Rigid Black Chrome","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SPI 13-897-4 is a rigid steel rule designed for precise linear measurement in trade and industrial applications. Finished in black chrome plating, it measures 12 inches in overall length and 1 inch in overall width, with a thickness of 0.04 inches. The rule features 5R graduation style, providing three scales on a single tool: 1\/32 inch, 1\/64 inch, and 1\/100 inch. The horizontal scale orientation and rigid construction make it suitable for layout, inspection, and fabrication tasks where a flexible rule would introduce error. Weight is 1 pound.\u003c\/p\u003e\u003cp\u003eThis rule is used in machine shops, fabrication facilities, HVAC sheet metal work, plumbing rough-in layout, and general trade applications where repeatable, accurate measurement is required. The black chrome finish reduces glare and improves readability of graduation marks under shop lighting. The rigid build prevents flexing during use, which is important when measuring against a flat reference surface or scribing a layout line. The 5R graduation style is a common choice for machinists and inspectors who need multiple fractional and decimal inch scales on one rule.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e5R graduation style with 1\/32, 1\/64, and 1\/100 inch scales on one rule\u003c\/li\u003e\n\u003cli\u003eBlack chrome-plated finish reduces glare and protects against corrosion\u003c\/li\u003e\n\u003cli\u003eRigid construction prevents flex during measurement and layout\u003c\/li\u003e\n\u003cli\u003eHorizontal scale orientation for straightforward reading along the rule length\u003c\/li\u003e\n\u003cli\u003eSteel construction for durability in shop and field environments\u003c\/li\u003e\n\u003cli\u003eNo hook or magnetic features — clean, simple layout tool\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose rigid steel rule suitable for machine shop, fabrication, HVAC, plumbing, and inspection applications requiring 1\/100, 1\/32, and 1\/64 inch graduation scales.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eNo installation is required for this hand tool. Store flat or in a protective sleeve to prevent damage to the graduation markings and chrome finish. Avoid dropping or bending the rule, as rigid steel rules can crack or lose calibration accuracy if deformed. Clean with a dry or lightly oiled cloth to maintain the finish and prevent rust.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 12 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.04 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation Style\u003c\/strong\u003e: 5R\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduations\u003c\/strong\u003e: 1\/32, 1\/64, 1\/100 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexibility\u003c\/strong\u003e: Rigid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Black Chrome-Plated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScale Orientation\u003c\/strong\u003e: Horizontal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes Hook\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnetic\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SPI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 13-897-4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51718147703090,"sku":"13-897-4","price":25.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/de8d90db81a1a5732aae95b0b2118826.jpg?v=1788550344","url":"https:\/\/voomisupply.com\/products\/spi-13-897-4-steel-rule-12-inch-5r-rigid-black-chrome","provider":"Voomi Supply","version":"1.0","type":"link"}