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The WILLIAMS COMFORT PRODUCTS JHWSA-12A-4P is a Phillips socket bit designed for use with 1/2 inch drive tools. Built in a two-piece configuration, the bit insert can be replaced independently from the socket body, reducing long-term tooling cost. The high-polish chrome finish resists corrosion and wipes clean quickly in field conditions. This bit is sized for Phillips No. 4 fasteners and measures 2.3 inches in outer diameter. It is sold as an individual unit and suits technicians who drive large-format Phillips fasteners during equipment installation or service work.
This socket bit is appropriate for trade professionals who work with 1/2 inch drive ratchets, impact wrenches, or breaker bars in HVAC, plumbing, electrical, and general mechanical service applications. The Phillips No. 4 sizing targets heavy-duty fasteners found in equipment panels, access covers, and structural mounting hardware. The replaceable bit design makes it practical for high-use shop and field environments where bit wear is routine.
Designed as an OEM-style socket bit for use with standard 1/2 inch drive tool systems requiring a Phillips No. 4 insert.
Confirm the drive tool is rated for the torque demands of the fastener before use. Power down or de-energize any equipment before accessing panels or covers secured by these fasteners. Inspect the bit tip for wear before each use, as a damaged Phillips tip can strip fastener heads. Replace the bit insert as needed using the two-piece design without replacing the full socket body.
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