{"product_id":"spi-91-412-7-feeler-gauge-parallel-leaf-0-5x12-inch","title":"Spi 91-412-7 Feeler Gauge Parallel Leaf 0.5x12 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 91-412-7 is a parallel-leaf feeler gauge used to measure precise clearances and gaps in mechanical assemblies. Each leaf is 0.85 mm (0.033 inches) thick, 0.5 inches wide, and 12 inches long, giving technicians a consistent reference blade for checking valve clearances, spark plug gaps, bearing tolerances, and similar close-tolerance measurements. Constructed from high-carbon steel, the blade resists wear and holds its calibrated thickness through repeated use. This is a single-leaf gauge suited for bench work, field service, or production-floor inspection tasks performed by machinists, mechanics, and HVAC technicians.\u003c\/p\u003e\n\u003cp\u003eThe SPI 91-412-7 is commonly used in settings where precise gap verification is required, including HVAC equipment servicing, engine and compressor maintenance, pump assembly, and general mechanical inspection. The 12-inch parallel leaf length provides enough reach to access recessed components, while the 0.5-inch width keeps the blade manageable in tighter spaces. Parallel-leaf geometry ensures uniform thickness along the full length of the blade, making it reliable for any measurement point along its span.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBlade thickness of 0.85 mm provides a defined reference for close-tolerance gap checks\u003c\/li\u003e\n  \u003cli\u003eParallel leaf style maintains consistent thickness along the full 12-inch length\u003c\/li\u003e\n  \u003cli\u003eHigh-carbon steel construction resists deformation and wear during repeated use\u003c\/li\u003e\n  \u003cli\u003e0.5-inch blade width balances reach with handling control\u003c\/li\u003e\n  \u003cli\u003eLightweight at 0.04 pounds, easy to carry in a field service kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose parallel-leaf feeler gauge for use across mechanical, HVAC, and industrial maintenance applications where a 0.85 mm gap reference is required.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eFeeler gauges are a hand-measurement tool and do not require installation. Clean the blade before and after use to prevent contamination of the measured assembly. Do not force the blade into a gap that is tighter than the blade thickness, as this can bend the leaf and compromise calibration. Store the blade flat or in a protective sleeve to prevent warping.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBlade Thickness\u003c\/strong\u003e: 0.85 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLeaf Style\u003c\/strong\u003e: Parallel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLeaf Width\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLeaf Length\u003c\/strong\u003e: 12 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-Carbon Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.04 pounds\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: 91-412-7\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51695336554802,"sku":"91-412-7","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ebfb6d30753a9d558624786132854f6b.jpg?v=1788334027","url":"https:\/\/voomisupply.com\/products\/spi-91-412-7-feeler-gauge-parallel-leaf-0-5x12-inch","provider":"Voomi Supply","version":"1.0","type":"link"}