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The PROTO J5436M is a 36 mm, 12-point hand socket designed for use with a 1/2 inch drive ratchet or breaker bar. Built to standard length, it features a chrome-plated finish that resists corrosion and simplifies cleaning in shop or field environments. At 0.85 pounds, it offers solid mass for confident torquing on fasteners found in heavy equipment, automotive drivetrains, industrial machinery, and structural assemblies. The 12-point configuration provides more contact positions per revolution, which is useful when swing arc is limited.
This socket is suited for professional mechanics, maintenance technicians, and industrial tradespeople who work on larger fasteners requiring a 36 mm opening. Standard length makes it a general-purpose choice for most exposed fastener applications where a deep socket is not required. It fits into standard 1/2 inch drive socket sets and is interchangeable with compatible extensions, universal joints, and torque wrenches in that drive class.
Designed as a standard OEM-style 1/2 inch drive hand socket for use with any 1/2 inch drive ratchet, torque wrench, breaker bar, or extension compatible with the standard square drive interface.
This socket is installed by licensed mechanics and maintenance technicians working on mechanical assemblies. Ensure the drive tool is rated for the torque demands of the fastener before applying load. Inspect the socket for cracks or rounding before each use and remove from service if wear is visible. Never use a hand socket with impact tools unless the socket is rated for impact service.
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