10 Best Double Flare Tools 2026 in the United States

The SEEKSELF Professional Brake Line Flaring Tool Kit is designed to handle 45-degree single, double, and bubble flares on various metal tubes like steel and copper, making it a versatile choice for brake and plumbing work. It supports common tubing sizes from 3/16" up to 3/8", covering most small to mid-size brake line jobs. The tool is built from sturdy steel, which should hold up well over time, and the split dies have safety features to prevent slipping during use.

While it requires mounting on a vise for stable operation and is not meant to be used directly on a car, its long lever handle helps reduce effort, especially for right-handed users. The included instruction manual is a helpful guide for beginners. The kit is portable with a plastic case for storage and transport, but it is a bit heavy at nearly 9 pounds.

This kit suits amateurs and professionals who need a reliable, all-in-one flaring tool for brake lines and similar tubing. Users should take safety precautions and have a proper vise setup to use it effectively.

The ARES 18010 Universal Hydraulic Flaring Tool Set is a versatile and comprehensive tool that caters to a variety of flaring needs. This tool can create 45-degree single or double flares, ISO/DIN bubble flares, push-connect flares, and GM fuel line flares, accommodating a wide range of tubing sizes from 3/16 to 1/2-inch and 4.75 to 10mm.

The inclusion of a hydraulic cylinder makes it suitable for both on-car and off-car use, ensuring efficiency and convenience in different working conditions. This makes it a handy tool for braking, transmission cooler, and fuel line projects, offering flexibility in material compatibility with both steel and soft metal tubing.

The tool set’s weight of 13.66 pounds and dimensions (14 x 12 x 4 inches) may impact its portability, making it less convenient for mobile mechanics or those who need a tool that's easy to carry around frequently. Additionally, while the tool is high-quality and durable, its performance in extreme or heavy-duty applications may need further validation. It's a robust tool that offers a broad range of applications and is well-suited for automotive technicians and DIY enthusiasts looking for a reliable flaring tool for various materials and flaring types.

The TGR Professional Brake Line Flaring Tool is designed to create precise single and double flares on brake lines, fuel lines, and transmission cooler lines. It supports 3/16", 1/4", 5/16", and 3/8" tubing sizes and works well with a range of materials, including steel, stainless steel, and softer metals, making it versatile for various automotive and mechanical projects.

This tool includes dies for both 45 and 37-degree flares, covering common flare types used in many brake and fuel line applications. Users will appreciate the ease of operation—this tool is designed to be quick and straightforward, saving time when working on line fittings. It is solidly built, contributing to durability, and it comes with a sample flare from factory testing to help ensure quality.

The tool weighs over 11 pounds, which might affect portability if frequently carried to different job sites. While it has strong user ratings and is well-regarded, it holds a moderate position in automotive tool sales, indicating it may not be as widely known as some other brands. It is suitable for both DIY enthusiasts and professionals seeking a reliable, versatile flaring tool that covers the most common tubing sizes and flare types.