Williams Comfort Products JHW3740 Open End Wrench

Product Description

The WILLIAMS COMFORT PRODUCTS JHW3740 is a double-ended open end wrench with a 1.25-inch opening and an overall length of 11.5 inches. Both ends are the same size, allowing the wrench to be used in four distinct positions by flipping or rotating the tool. The wrench head features a 45-degree chamfer on each end for easy placement onto fasteners, and the continuous arc head design resists spreading under load. The satin-chrome finish provides a non-slip grip and wipes clean quickly. This wrench is built to ANSI B107.39 Type 2-Class 3 specifications and weighs 1.2 pounds.

This open end wrench suits residential and commercial trade applications where access to standard box wrenches is limited by tight clearances. The thin head profile allows work in confined spaces common in HVAC installations, plumbing rough-in, and electrical equipment mounting. The dual offset design, with heads set at 15 and 60 degrees to the handle, expands usable swing arc in restricted areas. Plumbers, HVAC technicians, and mechanical contractors who work on equipment with hex fasteners will find this wrench a reliable hand tool for service and installation tasks.

Key Features

• Both ends are the same 1.25-inch size, giving four working positions from a single tool
• Wrench heads are offset at 15 and 60 degrees to the handle for flexible positioning
• 45-degree chamfer on each end allows quick, accurate seating on fasteners
• Continuous arc head design resists spreading and outperforms open-void designs under torque
• Thin head profile fits tight clearances where standard wrenches cannot reach
• Satin-chrome finish improves grip and simplifies cleanup after service work

Compatibility

Designed as a general-purpose open end wrench suited for hex fasteners with a 1.25-inch across-flats dimension in HVAC, plumbing, and mechanical service applications.

Installation Notes

This hand tool requires no installation. Verify the fastener size matches the 1.25-inch opening before applying torque. Always ensure equipment is de-energized and systems are shut down before performing service work that requires the use of hand tools on live mechanical assemblies. Follow applicable trade codes and job-site safety protocols when using hand tools in confined or elevated work areas.

Technical Specifications

• Opening Size: 1.25 inches
• Overall Length (OAL): 11.5 inches
• Head Offsets: 15 degrees and 60 degrees to handle
• End Chamfer: 45 degrees
• Finish: Satin-Chrome
• Weight: 1.2 pounds
• Standard: ANSI B107.39 Type 2-Class 3
• UPC: 662459319180

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: JHW3740