Proto J47055TM 5mm 12-point 1/4 Drive Hand Socket

Product Description

The PROTO J47055TM is a 5 mm, 12-point hand socket designed for precision fastener work in professional trade and mechanical service applications. Built to a standard length profile, this socket features a 1/4 inch drive and a chrome-plated finish that resists corrosion and simplifies cleanup in shop and field environments. At 0.02 pounds, it is a lightweight yet durable tool suited for tight-clearance fastener access. Licensed tradespeople and journeymen mechanics rely on this type of socket for repeatable, accurate torque application on metric fasteners in demanding service cycles.

This socket is used in HVAC, plumbing, electrical, and general mechanical service where metric fasteners are common. The 5 mm size addresses small fasteners found on control panels, motor mounting hardware, access covers, and equipment enclosures. The 12-point design allows engagement at more handle positions than a 6-point socket, which is useful in confined spaces where swing arc is limited. Standard length suits most open-access applications without requiring an extension.

Key Features

• 5 mm socket size for metric fastener applications
• 12-point geometry allows engagement every 30 degrees for use in tight spaces
• 1/4 inch drive compatible with standard quarter-drive ratchets and extensions
• Standard length profile for general-access fastener work
• Chrome-plated finish resists corrosion and aids surface cleaning

Compatibility

Designed as an OEM-style replacement or service addition for use with standard 1/4 inch drive ratchets, extension bars, and torque wrenches accepting 1/4 inch drive tooling.

Installation Notes

Hand sockets should be seated fully on the fastener before applying torque to prevent rounding. Inspect the socket for cracks or wear before each use, particularly in high-cycle service environments. Always use the correct drive torque tool rated for the fastener specification being serviced. Do not use impact drivers with hand-rated sockets.