Proto J5335MCF Open End Crowfoot Wrench Metric

Product Description

The PROTO J5335MCF is a metric open end crowfoot wrench designed for accessing fasteners in tight or obstructed spaces where a standard wrench cannot fit. The chrome-plated finish provides corrosion resistance and a clean surface that is easy to wipe down in shop or field environments. With an overall length of 3.4 inches and a profile height of 0.4 inches, this crowfoot head mates with standard 3/8-inch or 1/2-inch drive torque wrenches and extensions, giving technicians controlled torque on hex fasteners without direct handle access. It is well suited for automotive, HVAC, plumbing, and general mechanical service work where clearance is limited.

This crowfoot wrench is intended for metric fastener applications across a wide range of service trades. It is commonly used by HVAC technicians, plumbers, mechanics, and maintenance professionals when working around pipes, brackets, and panels that block conventional wrench swing. The compact 2.7-inch width and low-profile head make it practical for confined equipment bays and mechanical rooms. The chrome finish is appropriate for both bench and field use.

Key Features

• Metric open end crowfoot design for access in confined or obstructed spaces
• Chrome-plated finish for corrosion resistance and easy cleaning
• Overall length of 3.4 inches fits standard drive extensions and torque wrenches
• Low-profile head height of 0.4 inches clears tight clearance areas
• Limited Lifetime Warranty from PROTO
• Sold individually — package quantity of 1

Compatibility

Designed for use with standard square drive torque wrenches and extensions compatible with open end crowfoot attachments in metric applications.

Installation Notes

This crowfoot wrench is installed onto a square drive torque wrench or ratchet extension before positioning on the fastener. Ensure the drive tool is rated for the torque being applied and that the crowfoot is fully seated on the fastener before turning. When used with a torque wrench at an offset angle, consult the torque wrench manufacturer for correction factor guidance. Service should be performed by qualified trade professionals following applicable safety procedures.