Proto J5358CF Open End Crowfoot Wrench 1-13/16 Inch

Product Description

The PROTO J5358CF is an open end crowfoot wrench designed for reaching fasteners in tight or obstructed spaces where a standard open-end wrench cannot seat. It fits a 1/2-inch drive torque wrench or breaker bar, allowing controlled torque application without direct handle contact on the fastener. The wrench head measures 1-13/16 inches, with an overall length of 3-19/32 inches and a head thickness of 1/2 inch. The chrome-plated finish provides corrosion resistance and makes the tool easy to wipe clean in the field. This wrench weighs 0.71 pounds and is built to inch-measurement standards.

Open end crowfoot wrenches like the J5358CF are used by HVAC technicians, plumbers, pipefitters, and general maintenance mechanics when torquing or loosening nuts and fittings that are recessed, inline with tubing, or otherwise blocked from a conventional wrench approach. Common applications include equipment manifold connections, hydraulic and pneumatic line fittings, and structural fasteners in confined assemblies. The tool is used with a standard 1/2-inch drive ratchet or torque wrench and is suited for both residential and commercial service environments.

Key Features

• 1-13/16 inch open end head fits inch-standard fasteners in hard-to-reach locations
• 1/2-inch drive socket connection works with standard ratchets, extensions, and torque wrenches
• Head thickness of 1/2 inch allows access in shallow or tight clearance applications
• Chrome-plated finish resists corrosion and simplifies cleanup after use
• Lifetime warranty coverage from PROTO
• Weighs 0.71 pounds for manageable single-hand positioning

Compatibility

Designed for use with any standard 1/2-inch drive torque wrench, ratchet, or breaker bar. Fits 1-13/16 inch inch-standard hex fasteners and is compatible with inch-measurement tool sets.

Installation Notes

Install and remove using a 1/2-inch drive ratchet or torque wrench. Ensure the crowfoot head is fully seated on the fastener before applying torque to prevent rounding. Account for crowfoot offset when using a torque wrench by adjusting the torque setting per the equipment service manual or standard offset calculation. Never use extensions or adapters that introduce flex or misalignment when precise torque is required.