{"product_id":"spi-91-316-0-adjustable-angle-block-tool-steel","title":"Spi 91-316-0 Adjustable Angle Block Tool Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 91-316-0 is a precision adjustable angle block machined from tool steel and hardened to 50-55 Rc for long-term dimensional stability under shop conditions. The block adjusts from 0 to 60 degrees with a 90-degree V-angle and delivers 10-minute angular accuracy, making it suitable for layout, inspection, and setup work on surface plates or machine tool tables. It measures 3.75 inches long by 1.1875 inches wide by 2 inches high and weighs 5 pounds. Machinists, toolmakers, and metrology technicians use this block when precise angular reference is required for part setup or inspection fixtures.\u003c\/p\u003e\n\u003cp\u003eThis angle block is suited for precision metalworking environments including tool and die shops, machine shops, and quality control departments. It serves as a reliable angular reference for milling, grinding, and inspection setups where repeatable angle positioning is critical. The hardened tool steel construction resists wear from repeated use in production and job-shop settings alike.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eAdjustable angle range of 0 to 60 degrees for versatile setup configurations\u003c\/li\u003e\n  \u003cli\u003e10-minute angular accuracy for precise layout and inspection work\u003c\/li\u003e\n  \u003cli\u003eTool steel construction hardened to 50-55 Rc for wear resistance and long service life\u003c\/li\u003e\n  \u003cli\u003e90-degree V-angle for stable workpiece referencing\u003c\/li\u003e\n  \u003cli\u003eCompact block profile at 3.75 x 1.1875 x 2 inches fits standard surface plates and magnetic chucks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose adjustable angle reference block for use with standard surface plates, sine bars, and machine tool setups in precision metalworking applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis block is a metrology and setup tool, not a permanently installed component. Position it on a clean, flat surface plate or machine table, ensuring contact surfaces are free of burrs and debris before use. Handle hardened steel blocks with care to avoid edge chipping. No power lockout procedures are required, but always secure the workpiece and block assembly before initiating any machining operation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 3.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1.1875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 5 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Tool Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHardness\u003c\/strong\u003e: 50-55 Rc\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Adjustable Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Adjustable Angle\u003c\/strong\u003e: 60 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eV Angle\u003c\/strong\u003e: 90 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAngular Accuracy\u003c\/strong\u003e: 10 minutes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 91-316-0\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51694236336434,"sku":"91-316-0","price":289.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c0365c45ce5034eefa9e064f9799a58e.jpg?v=1788322011","url":"https:\/\/voomisupply.com\/products\/spi-91-316-0-adjustable-angle-block-tool-steel","provider":"Voomi Supply","version":"1.0","type":"link"}