Proto J5346MCF Open End Crowfoot Wrench Metric

Product Description

The PROTO J5346MCF is a metric open end crowfoot wrench designed for accessing fasteners in tight spaces where a standard wrench or socket cannot reach. Built with a chrome-plated finish for corrosion resistance and easy cleanup, it measures 3.9 inches in overall length and weighs 0.74 pounds. This tool is used by mechanics, HVAC technicians, plumbers, and other trade professionals who need to turn metric fasteners in confined or obstructed work areas. The open end crowfoot design attaches to a standard drive extension or torque wrench, allowing precise application of force without direct handle clearance.

This crowfoot wrench is suited for automotive, HVAC, plumbing, and general mechanical work where access to fasteners is restricted by surrounding components. It performs well in equipment rooms, mechanical chases, and engine bays where conventional wrenches cannot swing freely. The metric sizing makes it appropriate for equipment and fastener hardware specified in millimeter dimensions.

Key Features

• Open end crowfoot design provides access to fasteners in restricted or obstructed spaces
• Chrome-plated finish resists corrosion and simplifies cleaning
• Metric sizing for use with millimeter-spec fasteners
• Attaches to standard drive extensions and torque wrenches for controlled fastener tightening
• Compact 3.9-inch overall length for use in tight clearances
• Backed by a Limited Lifetime Warranty

Compatibility

Designed as an OEM-style replacement and standard-use crowfoot wrench compatible with common square drive extensions and torque wrenches used in trade and mechanical service applications.

Installation Notes

This tool is used by mechanics, HVAC technicians, and plumbers working on equipment with obstructed fastener access. Always ensure the drive extension and crowfoot are fully seated before applying torque. De-energize electrical equipment and shut off fluid systems before servicing fasteners on live components. Follow applicable torque specifications provided by the equipment manufacturer.