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The PROTO J5331M is a deep hand socket designed for professional use in automotive, industrial, and mechanical service applications. Built from alloy steel with a chrome-plated finish, it features a 31 mm socket size and a 12-point configuration that provides multiple engagement positions on fastener heads. The 1/2 inch drive fits standard ratchets, breaker bars, and torque wrenches used in trade service work. At 3.25 inches in overall length, the deep profile provides clearance to reach recessed or extended fasteners that a standard-depth socket cannot access. The chrome finish resists corrosion and simplifies cleanup. Meets ASME B107.5 standards for hand socket performance.
This socket is suited for heavy-duty hand tool applications where a deep reach is required. Typical use cases include wheel hub fasteners, suspension components, engine accessories, and other assemblies where fastener stems or studs protrude beyond the nut face. It is a practical choice for professional mechanics, maintenance technicians, and industrial service personnel working in shops or field environments.
Designed as a standard-fit deep hand socket for use with 1/2 inch drive ratchets, extensions, and torque wrenches in professional hand tool sets.
Installation and use of this socket should follow standard hand tool safety practices. Ensure the socket is fully seated on the fastener before applying torque. Do not use hand sockets with impact drivers unless the socket is rated for impact use. Inspect for cracks or deformation before each use and replace if damaged.
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