Proto J52118 10 Pc 3/8 in Drive Socket Set 12 Point

Product Description

The PROTO J52118 is a 10-piece standard socket set built around a 3/8 inch drive. It covers inch-measurement sockets ranging from 5/16 inch to 7/8 inch and features a 12-point design for solid engagement on fasteners in tight or open-access situations. The chrome finish provides corrosion resistance for everyday shop and field use. This set is sized for general mechanical and service work where a 3/8 inch drive ratchet or breaker bar is the tool of choice. Mechanics, HVAC technicians, and plumbers reach for this size range when working on equipment panels, valves, brackets, and component hardware. The set weighs 1.3 pounds, keeping it easy to move between job sites.

This socket set is suited for residential and light commercial service work. It fits typical applications in HVAC equipment service, plumbing fixture installation, electrical panel assembly, and general mechanical repair. The 10 included sockets span the most common fractional inch fastener sizes found on domestic equipment, making the set a practical addition to a field service bag or shop toolbox. The 12-point design works with both standard hex fasteners and older 12-point bolt heads.

Key Features

• 10 sockets in a single set covering 5/16 inch through 7/8 inch in fractional inch sizes
• 3/8 inch drive compatible with standard ratchets, extensions, and breaker bars
• 12-point socket design engages a wide range of hex and 12-point fasteners
• Chrome finish resists corrosion and simplifies cleaning after use
• Lightweight at 1.3 pounds, suited for portable field service kits
• Inch measurement sizing for domestic equipment and fastener standards

Compatibility

Designed for use with standard 3/8 inch drive ratchets, extensions, and torque wrenches accepting fractional inch sockets.

Installation Notes

This socket set is a hand tool and does not require installation, but proper use practices apply. Always confirm the socket size matches the fastener before applying torque to avoid rounding. Power down or de-energize any equipment before using sockets near live electrical components. Store sockets on a rail or in a labeled tray to prevent loss and keep sizes easy to identify on the job.