Proto J5220N Hand Socket 5/8 in 12-point 3/8 Drive

Product Description

The PROTO J5220N is a 12-point intermediate hand socket designed for 3/8-inch drive ratchets and breaker bars. Sized at 5/8 inches, it is built from steel with a polished finish and meets ASME B107.21 standards for hand sockets. At standard length, it fits into most service environments without the bulk of a deep socket. The J5220N is suited for mechanical, maintenance, and general trade work where a reliable, geometry-correct socket is required. Licensed electricians, pipefitters, HVAC technicians, and general maintenance mechanics reach for this type of socket during panel work, equipment installation, and equipment service.

The J5220N is appropriate for residential, commercial, and light industrial maintenance applications. It pairs with any 3/8-inch drive ratchet, torque wrench, or extension bar. The standard-length profile keeps it manageable in tight bays and equipment access panels. It is a single-piece socket sold individually, making it a practical replacement or addition to an existing socket set.

Key Features

• 5/8-inch socket size for common fastener applications across trades
• 12-point design increases contact angles and ratcheting flexibility
• 3/8-inch drive fits a wide range of standard ratchets and torque wrenches
• Steel construction with polished finish for corrosion resistance and durability
• Meets ASME B107.21 hand socket standards
• Lifetime warranty coverage from the manufacturer

Compatibility

Designed for use with any standard 3/8-inch drive ratchet, extension, or torque wrench accepting square-drive hand sockets.

Installation Notes

Hand sockets should always be fully seated on the fastener before applying torque to prevent rounding. Inspect the socket for cracks or wear before each use, particularly on high-cycle applications. Always use the correct drive size and socket size for the fastener being turned — using an adapter that steps up drive size beyond the socket rating is not recommended. This tool does not require power-down procedures but should be used with insulated ratchets when working near energized components per applicable NFPA 70E guidelines.