Williams Comfort Products JHWBCOM21 Crowfoot Wrench 21MM

Product Description

The WILLIAMS COMFORT PRODUCTS JHWBCOM21 is an open-end crowfoot wrench designed for 3/8 inch drive ratchets and torque wrenches. It features a 21 MM metric opening with a satin-chrome finish for corrosion resistance and durability in demanding shop and field environments. The crowfoot design allows access to fasteners in tight spaces where a standard box or open-end wrench cannot fit. With a head depth of 5/8 inch and an outside diameter of 1.75 inches, this wrench is sized for precise fitment on metric fasteners commonly found in HVAC equipment, refrigeration systems, and mechanical assemblies. Licensed technicians and trade professionals reach for crowfoot wrenches when working around tubing, fittings, and recessed bolt locations.

This wrench fits standard 3/8 inch drive ratchets, extension bars, and torque wrenches. It is well suited for residential and commercial HVAC service, refrigeration equipment maintenance, plumbing installations, and general mechanical work where 21 MM metric fasteners are present. The open-end head profile allows use on flats where access is limited to a single side of the fastener. It is sold individually.

Key Features

• Open-end crowfoot design for access to recessed or obstructed fasteners
• 3/8 inch drive compatible with standard ratchets, extensions, and torque wrenches
• 21 MM metric opening for common metric fastener sizes
• Satin-chrome finish resists corrosion and reduces glare in low-light work areas
• Head depth of 5/8 inch and outside diameter of 1.75 inches for compact clearance
• Length of centers: 1.125 inches for tight-space fitment

Compatibility

Designed for use with 3/8 inch drive ratchets, torque wrenches, and extension bars. Fits standard 21 MM metric fasteners in HVAC, refrigeration, plumbing, and mechanical service applications.

Installation Notes

This tool is intended for use by licensed tradespeople and qualified mechanics familiar with proper torque wrench and ratchet procedures. When using a crowfoot wrench on a torque wrench, account for the offset length to apply the correct torque correction factor per standard mechanical practice. Inspect the drive square and wrench head for wear or cracks before each use and do not use damaged tools. Store in a dry location to maintain the satin-chrome finish.

Technical Specifications

• Type: Open End Crowfoot Wrench
• Drive Size: 3/8 inch
• Wrench Opening: 21 MM
• Finish: Satin-Chrome
• Outside Diameter: 1.75 inches
• Length of Centers: 1.125 inches
• Head Depth: 0.625 inches
• Weight: 0.2 pounds
• Sold As: Each

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: JHWBCOM21