{"product_id":"proto-j4918mcf-open-end-crowfoot-wrench-1-5-8-inch","title":"Proto J4918MCF Open End Crowfoot Wrench 1-5\/8 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PROTO J4918MCF is an open end crowfoot wrench designed for fastener access in tight or obstructed spaces where a standard open-end wrench cannot reach. The head measures 1-5\/8 inches in diameter with a head thickness of 1\/4 inch, and the overall length is 1-15\/16 inches. A chrome-plated finish provides corrosion resistance for shop and field use. This crowfoot attaches to a standard 3\/8-inch drive ratchet or extension, giving technicians the torque control of a ratchet with the accessibility of an open-end jaw. Plumbers, HVAC techs, and general mechanics reach for crowfoot sets when working around pipes, fittings, and confined fastener locations.\u003c\/p\u003e\u003cp\u003eThe J4918MCF suits residential and commercial service work where fasteners are partially blocked by adjacent components, piping, or structural elements. It is a common addition to HVAC technician and plumber tool kits for tightening or loosening flare fittings, packing nuts, and other hardware in close quarters. Manufactured to ASME B107.21 and Federal Specification GGG-C-1507b, it meets recognized dimensional and performance standards for professional hand tools.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eOpen end crowfoot design fits onto 3\/8-inch drive ratchets and extensions for torque application in restricted spaces\u003c\/li\u003e\n\u003cli\u003e1-5\/8 inch head diameter with a slim 1\/4 inch head thickness for low-clearance access\u003c\/li\u003e\n\u003cli\u003eChrome-plated finish resists corrosion in shop and field environments\u003c\/li\u003e\n\u003cli\u003eMeets ASME B107.21 and Federal Spec GGG-C-1507b standards\u003c\/li\u003e\n\u003cli\u003eCompact 1-15\/16 inch overall length minimizes obstruction in tight work areas\u003c\/li\u003e\n\u003cli\u003eBacked by a Limited Lifetime Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an open end crowfoot wrench for use with standard 3\/8-inch drive ratchets and extensions in professional trade applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and removal of this tool does not require power shutdown, but always de-energize or depressurize the system being serviced before applying torque to fittings or fasteners. Align the crowfoot head squarely on the fastener before applying force to avoid rounding. When used with a torque wrench, account for any offset angle between the crowfoot and the torque wrench centerline per standard torque correction practices.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Diameter\u003c\/strong\u003e: 1-5\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Thickness\u003c\/strong\u003e: 1\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1-15\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.18 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Chrome-Plated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ASME B107.21, Federal Spec GGG-C-1507b\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty\u003c\/strong\u003e: Limited Lifetime Warranty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27110000\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: J4918MCF\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PROTO","offers":[{"title":"Default Title","offer_id":51539569148210,"sku":"J4918MCF","price":51.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3cbf216e08f9011c664aac954feab5ec.jpg?v=1785843220","url":"https:\/\/voomisupply.com\/products\/proto-j4918mcf-open-end-crowfoot-wrench-1-5-8-inch","provider":"Voomi Supply","version":"1.0","type":"link"}