{"product_id":"proto-j3754t-combination-flare-nut-wrench-9-16-in","title":"Proto J3754T Combination Flare Nut Wrench 9\/16 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PROTO J3754T is a double-end combination flare nut wrench designed for use on flare fittings in refrigeration, HVAC, and plumbing lines. The wrench features a 9\/16-inch opening on both ends with a 12-point design that provides multiple contact angles on hex fittings and reduces the chance of rounding fasteners under load. The 15-degree head offset angle gives clearance when working in tight spaces around tubing and manifolds. Overall length is 6-15\/16 inches. Constructed from steel with a satin finish that resists glare and light corrosion. This tool is a standard service item for HVAC technicians and plumbers who work regularly with flare fittings on refrigerant or gas lines.\u003c\/p\u003e\n\u003cp\u003eThe J3754T is suited for residential and light commercial HVAC service, refrigeration work, and plumbing applications where flare nut fittings are common. It is particularly useful when working on copper refrigerant lines, gas supply connections, and other tubing assemblies where a standard open-end wrench risks slipping. The double-end configuration and compact overall length make it practical in confined equipment compartments and line sets.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e9\/16-inch flare nut opening on both ends for consistent sizing across a job\u003c\/li\u003e\n  \u003cli\u003e12-point engagement reduces fastener rounding compared to 6-point open-end wrenches\u003c\/li\u003e\n  \u003cli\u003e15-degree head offset angle provides clearance in tight spaces around tubing\u003c\/li\u003e\n  \u003cli\u003eSteel construction with satin finish for durability and reduced glare\u003c\/li\u003e\n  \u003cli\u003e6-15\/16-inch overall length balances leverage and maneuverability in confined areas\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard flare nut wrench for use with 9\/16-inch flare fittings commonly found in HVAC, refrigeration, and plumbing systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis wrench is typically used by licensed HVAC technicians, refrigeration mechanics, and plumbers during line set connections and fitting service. Always recover refrigerant and depressurize lines before loosening flare fittings on refrigerant circuits. On gas lines, shut off the supply valve and verify pressure is relieved before breaking any connection. Do not use extensions on the wrench handle to apply excess torque to flare fittings, as this can deform the flare seat.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWrench Type\u003c\/strong\u003e: Combination Flare Nut\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Configuration\u003c\/strong\u003e: Double End\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOpening Size\u003c\/strong\u003e: 9\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoints\u003c\/strong\u003e: 12\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6-15\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Offset Angle\u003c\/strong\u003e: 15 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Satin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.25 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: PROTO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: J3754T\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PROTO","offers":[{"title":"Default Title","offer_id":51538963661106,"sku":"J3754T","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/cccd9674d345a806beb8a9e70c9f6f58.jpg?v=1785831115","url":"https:\/\/voomisupply.com\/products\/proto-j3754t-combination-flare-nut-wrench-9-16-in","provider":"Voomi Supply","version":"1.0","type":"link"}