Proto J52100 Standard Socket Set 7 Pc 3/8 in Drive

Product Description

The PROTO J52100 is a 7-piece standard socket set built around a 3/8 inch drive. It covers a range from 3/8 inch to 3/4 inch in inch sizing, with all sockets featuring a 6-point design for solid contact on fastener flats. The 6-point profile reduces rounding on worn or corroded hardware, making it a practical choice for HVAC, plumbing, and mechanical service work where fastener access varies. The full set weighs 0.97 pounds, keeping it manageable in a tool bag or service van. This set is intended for trade professionals who need a compact, reliable inch-drive socket selection on the job.

This socket set is suited for residential and light commercial service applications where 3/8 inch drive tools are standard. Typical uses include equipment panel removal, component mounting hardware, and general mechanical assembly encountered in HVAC, plumbing, and electrical service. The included sizes cover the most common inch-measurement fastener heads found on trade equipment. Individual sockets in the set are 3/8 inch, 7/16 inch, 1/2 inch, 5/8 inch, 11/16 inch, and 3/4 inch, covering six drive sizes across the 7-piece collection.

Key Features

• 7-piece set with 3/8 inch drive sizing across all sockets
• Size range from 3/8 inch to 3/4 inch in standard inch measurements
• 6-point socket design for reduced fastener rounding on service calls
• Includes six individual sizes: 3/8, 7/16, 1/2, 5/8, 11/16, and 3/4 inch
• Lightweight at 0.97 pounds for easy transport in a field tool kit

Compatibility

Designed for use with standard 3/8 inch drive ratchets, extensions, and breaker bars using inch-measurement fasteners common in trade service environments.

Installation Notes

Use with a properly rated 3/8 inch drive ratchet or torque wrench appropriate to the fastener application. Always de-energize electrical equipment and shut off fuel or fluid supply before accessing fasteners on mechanical systems. Inspect sockets for cracks or wear before use and replace any damaged pieces. Follow applicable codes and manufacturer service procedures for the equipment being serviced.