Proto 1/2" Drive Black Oxide Deep Socket 11/16" - 12 Point J5322B-SBD

Proto's J5322B-SBD (also identified as model J5322B) is a professional-grade 1/2 inch drive 11/16 inch deep socket engineered for heavy-duty industrial and automotive maintenance. This high-performance component features a 12-point configuration and a deep-well design, making it essential for reaching fasteners on long bolts or in recessed areas where standard sockets cannot reach. Finished in a specialized black oxide, the J5322B-SBD provides superior corrosion resistance and a non-reflective surface, ideal for harsh environments where a chrome finish might chip or peel under heavy stress. By choosing this socket, you benefit from Proto's advanced TorquePlus technology, which maximizes torque delivery while protecting fastener integrity.
Key Features
Features an 11/16 inch fractional (SAE) size with a 1/2 inch drive end, ensuring compatibility with all standard 1/2 inch ratchets, breaker bars, and extensions.
Deep-well profile with an overall length of 3-1/4 inches allows for easy access to nuts on long protruding bolts and deep-seated fasteners.
12-point socket geometry facilitates easier engagement with fasteners, allowing for effective rotation even at a thirty degree offset in cramped mechanical areas.
Engineered with the TorquePlus internal design, which shifts contact stress away from the fastener corners and onto the flats to prevent rounding and extend hardware life.
Industrial black oxide finish provides a durable, non-reflective layer of protection against rust, chemicals, and industrial fluids.
Precision-forged from high-strength alloy steel to ensure reliable performance and a long service life under professional mechanical loads.
Total product weight of 0.36 lbs (approximately 0.163 kg) offers a solid, durable feel for high-torque manual applications.
Manufactured to meet or exceed ASME B107.110-2012 and SAE AS954G technical standards for professional tool safety and industrial-grade performance.