Apex 81685 Flare Nut Wrench 3/4 X 7/8 Inch Sae Chrome

Product Description

The APEX 81685 is a double-end SAE flare nut wrench sized at 3/4 inch and 7/8 inch, designed for loosening and tightening hex nuts on tubing connections. Manufactured from alloy steel with a full polish chrome finish, this wrench is built for repeated use in demanding service environments. The two-size-per-wrench design reduces tool count in the bag. At 8.858 inches in length and 0.6 pounds, it is compact enough for tight access areas around fuel and brake line fittings. Plumbers, HVAC techs, and automotive service professionals working with flare fittings will find this tool fits standard hex nut profiles without damaging tubing.

The 81685 is suited for applications where tubing runs alongside or through hex nuts, preventing a standard open-end wrench from seating properly. Typical use cases include vehicle fuel lines, brake lines, refrigerant line fittings, and gas supply tubing connections. The flare nut profile wraps more contact area around the nut than an open-end wrench, reducing the chance of rounding the fitting. Sold individually, this wrench fits neatly into a service bag or toolbox without taking up excessive space.

Key Features

• Two SAE sizes on one wrench: 3/4 inch and 7/8 inch
• Flare nut profile provides greater contact than open-end wrenches, reducing fitting damage
• Alloy steel construction for durability under torque
• Full polish chrome finish resists corrosion and cleans easily
• Compact 8.858-inch length suited for access-restricted installations

Compatibility

Designed for use on 3/4-inch and 7/8-inch SAE hex flare nuts where tubing is present, including fuel lines, brake lines, refrigerant fittings, and gas supply connections.

Installation Notes

This wrench is installed by a mechanic, HVAC technician, or plumber working on flare-type tubing connections. Before servicing fuel, brake, or refrigerant lines, relieve system pressure and follow all applicable safety procedures for the fluid or gas involved. Slide the wrench over the tubing before engaging the fitting, as the enclosed profile requires pre-positioning. Do not use extension bars or cheater pipes on this wrench, as overloading may damage both the tool and the fitting.

Technical Specifications

• Size 1: 3/4 inch
• Size 2: 7/8 inch
• Length: 8.858 inches
• Weight: 0.6 pounds
• Material: Alloy Steel
• Finish: Full Polish Chrome
• Measurement Standard: SAE
• UPC: 099575816857

Standard Information

• Brand: APEX
• Manufacturer Part Number: 81685