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The PROTO J5434H is a 1-1/16 inch, 6-point hand socket designed for use with a 1/2 inch square drive ratchet or breaker bar. Built to standard length proportions, it features a chrome-plated finish that resists corrosion and makes cleanup easier in shop and field environments. The 6-point contact geometry distributes torque across the flat faces of a fastener rather than the corners, reducing the risk of rounding hardware under load. At 0.38 pounds, it is a compact tool suited for professional mechanics, HVAC technicians, plumbers, and electricians who need reliable hand-tool fastener drive on 1-1/16 inch fasteners.
This socket is appropriate for general mechanical service across residential and commercial trade applications. It fits a standard 1/2 inch drive tool set, making it compatible with the ratchets, extensions, and torque wrenches already carried on most service trucks. Typical use cases include tightening or removing hex-head fasteners on HVAC equipment, pipe flanges, electrical enclosures, and mechanical assemblies where a 1-1/16 inch fastener size is specified.
Designed for use with any 1/2 inch square drive ratchet, breaker bar, extension, or torque wrench following standard ANSI drive-tool conventions.
This socket is installed by a mechanic or trade professional using standard 1/2 inch drive hand tools. Ensure the socket is fully seated on the fastener before applying torque to avoid slippage. Inspect the socket and drive tool for wear or cracks before use under heavy load. Follow applicable torque specifications provided by the equipment manufacturer for the fastener being driven.
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