Proto J52107 Deep Socket Set 10 Pc 3/8 in Drive

Product Description

The PROTO J52107 is a 10-piece deep socket set built for professional trade use in tight, hard-to-reach fastener applications. Designed around a 3/8 inch drive, the set covers inch sizes from 5/16 inch through 7/8 inch with 12-point geometry, giving technicians solid engagement on hex fasteners in confined spaces. Sockets are stored on a clip rail for organized toolbox storage and quick access on the job. This set meets ASME B107.1 standards, making it a reliable choice for HVAC, plumbing, electrical, and general mechanical service work where depth and drive compatibility matter.

This set is suited for residential and light commercial service environments where technicians regularly access deep or recessed fasteners on equipment frames, panels, and mechanical assemblies. The 3/8 inch drive size is a common choice for mid-range torque applications, compatible with standard 3/8 inch drive ratchets, extensions, and torque wrenches found in most trade tool kits. The 10 included sizes span the most frequently encountered inch fastener range in HVAC, plumbing, and electrical installation and service work.

Key Features

• 10-piece set covers 5/16 inch through 7/8 inch in standard inch sizing
• 3/8 inch drive compatible with standard ratchets, extensions, and torque wrenches
• 12-point socket geometry for engagement flexibility on hex fasteners
• Deep socket profile reaches recessed and extended-stud fasteners
• Clip rail storage keeps sockets organized and prevents loss in the field
• Meets ASME B107.1 specification for hand socket tools

Compatibility

Designed for use with standard 3/8 inch drive ratchets, breaker bars, and extensions in inch drive tool systems.

Installation Notes

This socket set is intended for use by licensed technicians and qualified tradespeople working on mechanical, HVAC, plumbing, or electrical equipment. Always de-energize and lock out equipment before beginning fastener work on electrical panels or live mechanical systems. Use an appropriate torque wrench when fastener torque specifications are required by the equipment manufacturer or applicable codes. Inspect sockets for wear or cracking before use and do not use damaged sockets.