Milwaukee Tool 45-96-8303 Flare Nut Wrench 5/8x11/16

Product Description

The MILWAUKEE TOOL 45-96-8303 is a double-end, 6-point flare nut wrench sized at 5/8 inch and 11/16 inch. It is designed for use on flare-nut fittings found in refrigerant lines, fuel lines, and hydraulic tubing. The straight-head, open-end design grips six points of the nut to reduce rounding on soft fittings. Constructed from chrome-finished steel with corrosion-resistant properties, the wrench measures 7.99 inches in overall length and weighs 0.44 pounds. Licensed HVAC technicians, plumbers, and refrigeration mechanics are the primary users of this tool during line set connections and service work.

This wrench is suited for residential and light commercial HVAC and refrigeration service, particularly where flare fittings on copper or aluminum tubing require a controlled grip. The dual-end configuration covers two common fitting sizes in one tool, reducing the number of wrenches needed on a service call. Typical applications include connecting flare fittings on refrigerant line sets, brake lines, and fuel delivery components where a standard open-end wrench risks slipping or deforming the fitting hex.

Key Features

• Double-end design covers 5/8 inch and 11/16 inch flare nut sizes
• 6-point flare nut opening reduces rounding on soft-metal fittings
• Straight head profile for direct access in tight spaces
• Chrome steel construction rated corrosion-resistant
• Overall length of 7.99 inches with a head thickness of 0.453 inches
• Non-insulated, non-ratcheting, non-sparking rated — suited for standard service environments

Compatibility

Designed as an OEM-style hand tool replacement for flare nut wrench applications on 5/8 inch and 11/16 inch fittings commonly found in refrigerant, fuel, and hydraulic line service.

Installation Notes

Licensed HVAC technicians and plumbers should de-pressurize and recover any refrigerant or fluid from the line before loosening or tightening flare fittings. Use this wrench in combination with a backup wrench on the mating component to prevent twisting soft tubing. Apply only hand torque consistent with the fitting manufacturer specification — over-torquing flare fittings is a leading cause of leaks. Follow all applicable refrigerant handling and plumbing codes during service.