Apex 81644 Flare Nut Wrench 9MM X 11MM Chrome

Product Description

The APEX 81644 is a dual-size flare nut wrench designed to loosen and tighten hex nuts in confined spaces where tubing is present. Sized at 9MM x 11MM, it provides two working sizes on a single tool, reducing the number of wrenches needed on a job. The wrench is manufactured from alloy steel with a full polish chrome finish that resists corrosion and simplifies cleanup. At 0.2 pounds and approximately 5.984 inches in length, it is compact enough for tight-access work on fuel lines, brake lines, and similar tubing assemblies. Licensed trades and service technicians working on hydraulic, fuel, or refrigerant line fittings will find this a practical addition to their kit.

The 81644 follows a standard fixed-head pattern, making it well-suited for applications where tube routing limits the approach angle and a standard open-end wrench risks rounding the fitting. Typical use cases include automotive fuel and brake line fittings, HVAC refrigerant line connections, and plumbing supply line nuts where hex fittings sit close to tubing. The standard body pattern provides a low-profile grip on the fitting without requiring flex or ratcheting action, which keeps the tool simple and durable for repeated daily use.

Key Features

• Dual-size design: 9MM and 11MM on one wrench saves toolbox space
• Alloy steel construction for strength and long service life
• Full polish chrome finish resists corrosion and wipes clean easily
• Standard fixed-head pattern for straightforward fitting access
• Compact 5.984-inch length suited for tight-access installations
• Flare nut opening captures hex nut on multiple faces to reduce rounding

Compatibility

Designed for use on hex nuts where tubing is present, including vehicle fuel lines, brake lines, and similar fittings requiring a flare nut wrench in the 9MM to 11MM range.

Installation Notes

Flare nut wrenches are installed by a licensed technician or qualified trade professional working on fuel, brake, refrigerant, or plumbing line fittings. Always relieve system pressure and shut off fluid supply before loosening any fitting. Ensure the correct size is seated fully on the fitting before applying torque to avoid rounding. Follow applicable codes and manufacturer procedures for the specific system being serviced.

Technical Specifications

• Size: 9MM x 11MM
• Length: 5.984 inches
• Weight: 0.2 pounds
• Material: Alloy Steel
• Finish: Full Polish Chrome
• Pattern: Standard Fixed Head
• UPC: 099575816444

Standard Information

• Brand: APEX
• Manufacturer Part Number: 81644