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The WILLIAMS COMFORT PRODUCTS 50664 is an 18-piece 3/8 inch drive SAE socket set designed for professional technicians who need a reliable, complete socket assortment on the job. The set covers a standard range of SAE sizes and is built for use with 3/8 inch drive ratchets and extensions. At 4.224 pounds, it is a solid, trade-ready kit suited for HVAC service calls, plumbing rough-ins, electrical panel work, and general mechanical applications where SAE fasteners are common. Licensed tradespeople and experienced DIYers will find this set covers the sizes most frequently encountered in residential and light commercial service work.
This socket set is appropriate for use across a wide range of trade applications, including HVAC equipment installation and service, plumbing fixture work, electrical enclosure mounting, and pool equipment mechanical service. The 3/8 inch drive format is one of the most common drive sizes in field service kits, making this set a practical addition to any service van or shop toolbox. The SAE sizing makes it well suited for work on domestic equipment and legacy systems using standard inch-based fasteners.
Designed for use with standard 3/8 inch drive ratchets, extensions, and accessories. Compatible with SAE fastener sizes typical of domestic HVAC, plumbing, electrical, and mechanical equipment.
Socket sets of this type are used by HVAC technicians, plumbers, electricians, and pool service professionals for equipment installation, service, and repair. Always power down or de-energize equipment and shut off gas or water supply before beginning mechanical service. Use the correct socket size for the fastener to avoid rounding. Inspect sockets for cracks or wear before each use.
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