{"product_id":"spi-3-60-inches-spi-setting-ring-3-6-id-6-25-od-0-94-thick","title":"Spi 3.60 Inches Spi Setting Ring 3.6 Id 6.25 Od 0.94 Thick","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 3.60\" SPI is a precision setting ring used to calibrate and verify bore gauges, plug gauges, and other internal measuring instruments. The ring features a 3.6-inch inside diameter, a 6.25-inch outside diameter, and a thickness of 0.94 inches. Manufactured to an accuracy of 0.00020 inches and a surface smoothness of 10.0 micrometers, this setting ring supports reliable gauge calibration in tool rooms, machine shops, and quality control environments. Metrology technicians and machinists rely on setting rings to establish a traceable reference point before taking precision internal measurements.\u003c\/p\u003e\n\u003cp\u003eThis setting ring is suited for use in industrial and manufacturing environments where tight dimensional tolerances must be maintained. It serves as a master reference for resetting internal bore gauges prior to measurement runs. Typical applications include production inspection, incoming quality control, and calibration lab use. The silver finish and precision-ground surfaces make it appropriate for environments requiring repeatable and accurate gauge zeroing across high-volume measurement workflows.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eInside diameter of 3.6 inches for calibrating bore gauges and internal measuring tools\u003c\/li\u003e\n  \u003cli\u003eOutside diameter of 6.25 inches and thickness of 0.94 inches for stable handling and mounting\u003c\/li\u003e\n  \u003cli\u003eAccuracy of 0.00020 inches supports high-precision metrology applications\u003c\/li\u003e\n  \u003cli\u003eSurface smoothness of 10.0 micrometers for consistent gauge contact and repeatable readings\u003c\/li\u003e\n  \u003cli\u003eSilver finish with precision-ground bore surface\u003c\/li\u003e\n  \u003cli\u003eSold individually — package quantity of 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style master reference ring for use with bore gauges, air gauges, and plug gauge sets requiring a 3.6-inch internal diameter setting standard.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eSetting rings are handled and stored by metrology technicians and quality control personnel, not field tradespeople. Keep the ring clean and free of burrs, chips, or contaminants before use. Store in a protective case away from temperature extremes to prevent thermal expansion errors. Do not drop or stack with other metallic tools, as surface damage will compromise calibration accuracy.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 3.6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 6.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.94 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccuracy\u003c\/strong\u003e: 0.00020 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface Smoothness\u003c\/strong\u003e: 10.0 micrometers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Silver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 7.05 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 3.60\" SPI\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51711821676850,"sku":"3.60\" SPI","price":373.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/bc003527386602459647d80cf110be79.jpg?v=1788480039","url":"https:\/\/voomisupply.com\/products\/spi-3-60-inches-spi-setting-ring-3-6-id-6-25-od-0-94-thick","provider":"Voomi Supply","version":"1.0","type":"link"}