Proto J3116M Open End Wrench 16 Mm Double End

Product Description

The PROTO J3116M is a double-ended open end wrench sized at 16 mm, built for mechanical and maintenance professionals who need a reliable hand tool for fastener work in tight or open spaces. Constructed from steel with a chrome-plated finish, this wrench resists corrosion and wipes clean easily in shop environments. Each end features an open head angled at 15 degrees and 60 degrees respectively, giving the technician two approach angles in a single tool. At 6 inches in length and 0.16 pounds, it is compact enough for use in confined areas without sacrificing leverage on standard metric fasteners.

This wrench is suited for residential, commercial, and light industrial maintenance tasks. HVAC technicians, plumbers, pipefitters, and general mechanical tradespeople will find it useful for component removal and installation on equipment with 16 mm fasteners. The dual-angle head design allows repositioning in tight quarters without swapping tools, making it a practical addition to a standard metric wrench set. It meets GGG-W-636E federal specification standards, indicating consistent dimensional and performance requirements for professional-grade hand tools.

Key Features

• Double-ended open head configuration provides two working ends in one tool
• 15-degree and 60-degree head angles for improved access in confined spaces
• Chrome-plated steel construction for corrosion resistance and easy cleaning
• Meets GGG-W-636E federal specification standards
• Backed by a lifetime warranty
• Compact 6-inch length at 0.16 pounds for lightweight portability

Compatibility

Designed as an OEM-style replacement or direct addition to professional metric hand tool sets requiring a 16 mm open end wrench.

Installation Notes

This wrench is a hand tool intended for use by qualified tradespeople including HVAC technicians, plumbers, and mechanical maintenance professionals. Always ensure the wrench opening is fully seated on the fastener before applying force to avoid rounding. De-energize or shut off any system before performing mechanical disassembly on powered equipment. Inspect the chrome finish regularly for chips or wear that could indicate tool fatigue.