Gearwrench 81910 Flare Nut Wrench Set 5 Pc Inch

Product Description

The GEARWRENCH 81910 is a 5-piece flare nut wrench set designed for service work on hydraulic, fuel, and refrigerant line fittings where standard open-end wrenches risk rounding off soft flare nuts. Each wrench features a flexible head and a 6-point contact profile that grips the fastener on flat surfaces rather than corners, reducing the chance of slippage and fastener damage. The polished finish provides corrosion resistance for long service life in shop or field conditions. The set covers five common inch dual-size combinations and comes stored in a fitted tray for organized storage. HVAC technicians, plumbers, and automotive service pros rely on this style of wrench for brake line, refrigerant, and fuel fitting work.

This set is suited for residential and light commercial service applications involving flared tubing connections. Typical use cases include disconnecting and reconnecting refrigerant line fittings on HVAC and refrigeration equipment, brake and fuel line service, and hydraulic fitting work. The flexible head design allows access in tight or angled spaces where a rigid flare nut wrench cannot reach. The tray storage keeps the set organized in a tool chest or service van.

Key Features

• 5-piece set covering five dual-size inch combinations: 1/4 x 5/16 inches, 3/8 x 7/16 inches, 1/2 x 9/16 inches, 5/8 x 11/16 inches, and 3/4 x 7/8 inches
• Flexible head design provides access in confined or angled installations
• 6-point contact profile grips flats to reduce fastener rounding
• Corrosion-resistant polished finish for extended service life
• Includes fitted tray for organized storage and transport
• Lifetime warranty

Compatibility

Designed for use with standard inch-size flare nut fittings found on refrigerant lines, brake lines, fuel lines, and hydraulic tubing in residential, commercial, and automotive service applications.

Installation Notes

Flare nut wrenches are intended for use by HVAC technicians, plumbers, and mechanical service professionals working on pressurized line fittings. Always relieve system pressure and recover any refrigerant or fluid before loosening flare nut connections in accordance with applicable codes and regulations. Select the correct size wrench for the fitting to avoid slippage. The flexible head should be fully seated on the fitting before applying torque.