Proto J4704LM Deep Hand Socket 4mm 6-point 1/4 Drive

Product Description

The PROTO J4704LM is a deep hand socket designed for precise fastener work in professional trade and mechanical service environments. Built around a 4 mm socket size with a 1/4 inch drive, this 6-point socket delivers full contact engagement on hex fasteners, reducing the risk of rounding during high-torque applications. The chrome-plated finish provides corrosion resistance and makes surface contamination easier to clean between jobs. The deep length profile accommodates extended bolts, studs, and recessed fasteners that standard-length sockets cannot reach. Mechanics, electricians, HVAC technicians, and plumbers rely on deep sockets like this when working in confined spaces where fastener exposure is limited.

The J4704LM is suited for both bench work and in-system service tasks where small metric fasteners are common. The 1/4 inch drive size makes it compatible with compact ratchets, extensions, and torque tools standard in light-duty and precision mechanical work. The 4 mm size is frequently encountered in electrical panel hardware, HVAC control board mounting, and plumbing fixture components. This socket is packaged as a single unit, making it a practical individual replacement or addition to an existing socket set.

Key Features

• 4 mm socket size for metric fastener applications
• 6-point design provides full-face contact, minimizing fastener rounding
• Deep length profile for recessed or extended fasteners
• 1/4 inch drive compatible with standard compact ratchets and extensions
• Chrome-plated finish for corrosion resistance and easy cleaning

Compatibility

Designed as an OEM-style replacement or supplemental addition compatible with standard 1/4 inch drive ratchets, extensions, and torque wrenches used in professional mechanical and trade service applications.

Installation Notes

Ensure the drive tool and socket are fully seated before applying torque to prevent slippage or fastener damage. Power down or de-energize equipment before servicing fasteners on electrical or HVAC components. Inspect the socket for cracks or wear before use, and do not use hand sockets with impact drivers unless the socket is rated for impact use.