Proto J5316M Deep Hand Socket 16mm 12-point 1/2 Drive

Product Description

The PROTO J5316M is a deep hand socket designed for professional-grade hand tool applications. Built with a 16 mm socket size and a 12-point configuration, it accepts a 1/2 inch drive and delivers solid torque transfer on hex fasteners where standard-depth sockets cannot reach. The chrome-plated finish resists corrosion and simplifies cleanup in shop environments. At 0.27 pounds, this socket handles demanding fastener work without adding unnecessary bulk to a technician's kit. Electricians, pipefitters, millwrights, and general maintenance trades rely on deep sockets like this when working with recessed or stud-mounted hardware.

The J5316M is suited for both residential and commercial maintenance applications where 16 mm fasteners are common, including HVAC equipment, electrical panel work, pump assemblies, and mechanical equipment installations. The deep length clears extended bolt threads and stud projections that would prevent a standard socket from seating fully. It fits standard 1/2 inch drive ratchets, breaker bars, and torque wrenches.

Key Features

• 16 mm socket size for metric fastener applications
• 12-point design provides more ratcheting positions in tight spaces
• Deep length clears extended studs and recessed fasteners
• 1/2 inch drive compatible with standard ratchets, breaker bars, and torque wrenches
• Chrome-plated finish resists corrosion and wipes clean easily
• Lightweight at 0.27 pounds for extended use without fatigue

Compatibility

Designed as an OEM-style replacement or direct-fit addition to 1/2 inch drive socket sets requiring deep metric coverage at 16 mm.

Installation Notes

A licensed or qualified tradesperson should select the correct drive torque wrench when fastener torque specifications are critical. Always confirm the socket is fully seated on the fastener before applying torque to prevent rounding. Inspect the socket for cracks or wear before each use and replace if deformation is visible. Do not use impact-rated sockets interchangeably with hand sockets on impact drivers unless the socket is rated for impact use.