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The WILLIAMS COMFORT PRODUCTS 35279-TH is a 19mm hex bit socket with a 1/2 inch drive, designed for use with standard 1/2 inch drive ratchets and breaker bars. This socket delivers a secure hex bit engagement for fastener removal and installation in heavy-duty trade applications. At 0.51 pounds, it is a solid, single-piece tool suited for HVAC, plumbing, and mechanical service work where metric hex fasteners are encountered. Licensed tradespeople and experienced technicians who need reliable metric tooling for field and shop use will find this socket fits standard workflow requirements.
This socket is appropriate for residential and commercial service environments where 19mm hex fasteners are common, including equipment mounting hardware, valve packing nuts, and mechanical assembly points. It mates with any standard 1/2 inch drive ratchet, torque wrench, or impact-rated extension. The metric sizing makes it a practical addition to service kits used in mixed-fastener applications across HVAC, plumbing, and general mechanical trades.
Designed for use with standard 1/2 inch drive hand tools including ratchets, breaker bars, torque wrenches, and extensions in trade and mechanical service applications.
Verify the drive connection is fully seated before applying torque to avoid slippage or fastener damage. Power down and de-energize any equipment before accessing fasteners on electrical or HVAC components. Use a torque wrench where manufacturer specifications require controlled fastener torque. Inspect the socket for wear or cracks before each use and replace if any deformation is present.
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