Williams Comfort Products XFN-1618-TH Flare Nut Wrench

Product Description

The WILLIAMS COMFORT PRODUCTS XFN-1618-TH is a flare nut wrench sized for 1/2-inch and 9/16-inch fasteners. Flare nut wrenches, also called line wrenches or fitting wrenches, grip more of the fastener hex than an open-end wrench, reducing the chance of rounding soft fittings on refrigerant lines, fuel lines, and hydraulic connections. This wrench is sold as a single unit and weighs 0.23 pounds, making it a lightweight addition to a service bag. HVAC technicians, plumbers, and general mechanical trades rely on this style of wrench when working in tight quarters around tubing connections that standard combination wrenches can damage.

This wrench is suited for service work on refrigerant line fittings, fuel supply connections, and brake or hydraulic line fittings where preserving the hex corners of soft brass or steel fittings is essential. The dual-size head covers two common tubing fitting sizes in a single tool, reducing the number of individual wrenches a technician needs to carry on a job.

Key Features

• Flare nut design grips more hex surface area than a standard open-end wrench, reducing fitting damage
• Dual-size head fits 1/2-inch and 9/16-inch fasteners
• Lightweight at 0.23 pounds, suitable for portable tool bags
• Single-piece construction with no moving parts
• Sold individually (quantity of one)

Compatibility

Designed for use with 1/2-inch and 9/16-inch hex fittings commonly found on refrigerant, fuel, and hydraulic tubing connections in HVAC, plumbing, and mechanical service applications.

Installation Notes

A licensed HVAC technician or journeyman plumber typically uses this wrench when loosening or tightening flare-type tubing fittings. Always recover refrigerant and relieve system pressure before disconnecting refrigerant line fittings in accordance with EPA Section 608 requirements. Shut off fuel supply and verify zero pressure before breaking fuel line connections. Apply smooth, controlled torque to avoid distorting soft brass fittings.

Technical Specifications

• Wrench Size: 1/2 inch x 9/16 inch
• Weight: 0.23 pounds
• Unit of Measure: Each
• UPC: 662459974624

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: XFN-1618-TH