{"product_id":"proto-j4990-7mst-hand-hex-bit-socket-3-8-in-drive-7-mm","title":"Proto J4990-7MST Hand Hex Bit Socket 3\/8 in Drive 7 Mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PROTO J4990-7MST is a hand hex bit socket designed for 3\/8 inch drive ratchets and extensions. It drives 7 mm hex fasteners and delivers reliable torque transfer in tight-access applications where a standard hex key or L-wrench is impractical. The overall length is 1-49\/64 inches, with a 3\/4 inch bit length that keeps the socket compact for work in confined spaces. Weighing 0.11 pounds, this socket is suited for mechanics, HVAC technicians, and plumbers who regularly encounter hex-head fasteners on equipment panels, valve bodies, and component mounting hardware.\u003c\/p\u003e\n\u003cp\u003eThis socket is a practical choice for service work on HVAC equipment, plumbing fixtures, and general mechanical assemblies where 7 mm hex fasteners are common. The 3\/8 inch drive sizing makes it compatible with the mid-range drive tools most field technicians carry as their primary ratchet set. It fits standard 3\/8 inch drive tool sets used in both shop and field environments, and the short overall length suits applications where clearance above the fastener is limited.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3\/8 inch drive for use with standard mid-range ratchets, extensions, and torque wrenches\u003c\/li\u003e\n  \u003cli\u003e7 mm hex bit engages hex-head fasteners and socket-head cap screws\u003c\/li\u003e\n  \u003cli\u003eCompact 1-49\/64 inch overall length for use in restricted clearance situations\u003c\/li\u003e\n  \u003cli\u003e3\/4 inch bit length provides solid fastener engagement without excessive protrusion\u003c\/li\u003e\n  \u003cli\u003eLightweight at 0.11 pounds, reducing hand fatigue during repetitive service tasks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style hand hex bit socket for use with standard 3\/8 inch drive ratchets, extensions, and torque wrenches accepting hex bit sockets.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eMechanics, HVAC technicians, and plumbers install and remove hex fasteners with this socket using a 3\/8 inch drive ratchet or torque wrench. Ensure the drive connection is fully seated before applying torque to prevent rounding the fastener or damaging the socket. Power down or de-energize equipment before loosening fasteners on electrical enclosures or control panels. Inspect the bit tip for wear before use and replace the socket if the hex profile shows rounding.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Size\u003c\/strong\u003e: 3\/8 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHex Size\u003c\/strong\u003e: 7 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1-49\/64 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBit Length\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.11 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSocket Type\u003c\/strong\u003e: Hex Bit\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27110000\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: J4990-7MST\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PROTO","offers":[{"title":"Default Title","offer_id":51543101800754,"sku":"J4990-7MST","price":22.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4fce882cb1a38d0fc20f1009e3628e25.jpg?v=1785915483","url":"https:\/\/voomisupply.com\/products\/proto-j4990-7mst-hand-hex-bit-socket-3-8-in-drive-7-mm","provider":"Voomi Supply","version":"1.0","type":"link"}