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The PROTO J5554 is a 12-point hand socket designed for professional-grade fastener removal and installation. Built from alloy steel with a chrome-plated finish, it accepts a 3/4 inch drive and fits 1-11/16 inch fasteners. The overall length is 2-3/4 inches, placing it in the standard-length category. This socket meets ASME B107.110-2012 and SAE AS954G specifications, making it appropriate for demanding trade and industrial applications. It is installed and used by mechanics, millwrights, pipefitters, and other trades who work with large-format fasteners on heavy equipment, flanges, and structural assemblies.
This socket suits residential, commercial, and industrial environments wherever 3/4 inch drive tooling is specified. Standard-length geometry makes it a practical choice for accessible fastener locations on pumps, compressors, pipe flanges, and mechanical equipment. The 12-point configuration allows engagement at more rotational positions than a 6-point design, useful in confined areas where swing arc is limited. Chrome plating resists corrosion during storage and everyday shop use.
Designed for use with standard 3/4 inch drive ratchets, breaker bars, and extensions compatible with square-drive hand socket tooling.
This socket is used by mechanics, pipefitters, and industrial maintenance technicians working with 3/4 inch drive tooling. Ensure the drive tool and socket are fully engaged before applying torque to prevent rounding or slippage. Inspect the socket for cracks or wear before each use. This product is listed as not tether capable and should not be used in elevated work environments requiring dropped-tool prevention.
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