{"product_id":"spi-91-388-9-feeler-gauge-0-035-in-parallel-leaf-12-in","title":"Spi 91-388-9 Feeler Gauge 0.035 in Parallel Leaf 12 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SPI 91-388-9 is a parallel-leaf feeler gauge used to measure precise clearances and gaps in mechanical assemblies. Manufactured from high-carbon steel, this gauge delivers the rigidity and wear resistance required for repeated use in demanding shop and field environments. The leaf measures 0.035 inches thick, 0.5 inches wide, and 12 inches long, making it well suited for reaching into tight clearance zones. HVAC technicians, machinists, and industrial mechanics rely on feeler gauges like this one to verify valve clearances, spark plug gaps, bearing fits, and similar precision gap checks.\u003c\/p\u003e\u003cp\u003eThis gauge is applicable across a broad range of trade and industrial settings, including HVAC service, engine work, pump maintenance, and general mechanical assembly. The 12-inch parallel leaf length provides extended reach for deep or obstructed measurement points. Its 0.035-inch thickness corresponds to a common gap specification found in burner orifice alignment, motor bearing checks, and rotating equipment service tasks performed by licensed technicians and experienced mechanics.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eParallel leaf style for consistent thickness along the full 12-inch length\u003c\/li\u003e\n\u003cli\u003eHigh-carbon steel construction for durability and resistance to deformation\u003c\/li\u003e\n\u003cli\u003e0.035-inch thickness for precise gap measurement at a widely used specification\u003c\/li\u003e\n\u003cli\u003e0.5-inch leaf width provides stable contact surface during measurement\u003c\/li\u003e\n\u003cli\u003e12-inch length offers extended reach into confined or deep clearance points\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose feeler gauge leaf for use in HVAC, mechanical, and industrial service applications where a 0.035-inch parallel leaf is required.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eFeeler gauges are used by technicians and mechanics to verify clearances without power tools. Always ensure the equipment being measured is powered down, depressurized, or at rest before inserting the gauge leaf. Avoid bending or forcing the leaf into a gap narrower than its rated thickness, as this can permanently deform the blade and compromise accuracy. Clean the leaf after each use to prevent corrosion and maintain measurement integrity.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.035 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 12 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeaf Style\u003c\/strong\u003e: Parallel\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: 0.0499 pounds\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: 91-388-9\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51715037102386,"sku":"91-388-9","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c8ed799a2849cdd1e60f0d17fba7a638.jpg?v=1788509124","url":"https:\/\/voomisupply.com\/products\/spi-91-388-9-feeler-gauge-0-035-in-parallel-leaf-12-in","provider":"Voomi Supply","version":"1.0","type":"link"}