10 Best Double Flare Tools 2025 in the United States

The Capri Tools 3/16 in. Double Flaring Tool is well-suited for automotive enthusiasts or DIYers working with brake lines. It's specifically designed to create high-quality 45-degree SAE double flares on 3/16-inch tubing, and it works effectively with non-stainless steel, nickel, and copper materials. This makes it a great choice for those working on standard brake lines but not suitable for stainless steel tubing.

The tool stands out with its compact and portable design, allowing users to work on or off the vehicle, even in tight spaces. This flexibility is enhanced by the detachable die, which can be used with a bench vise, adding to its versatility. The simplicity of the tool's operation, requiring just a 10 mm and a 17 mm wrench, emphasizes ease of use, making it accessible for users who may not have extensive toolkits.

Durability-wise, the tool is constructed with alloy steel, promising long-lasting performance, and it comes with a lifetime warranty, which is reassuring for long-term use. Its lightweight nature at only 12.8 ounces and compact dimensions further enhance portability, making it easy to store and transport.

In summary, the Capri Tools Double Flaring Tool is a reliable and practical option for those frequently working with 3/16-inch tubing in brake systems, offering portability and ease of use as its main advantages.

The Professional Brake Line Flaring Tool Kit from YUANRI is designed to make precise 45-degree single, bubble, and double flares on brake, transmission cooler, and fuel lines. The kit's compatibility with various tube sizes (3/16", 1/4", 5/16", 3/8", and 4.75mm) makes it versatile for different applications. It's especially useful for DIY enthusiasts and mechanics due to its ability to work with soft metal tubes like copper and aluminum, as well as 304 stainless steel and steel tubing.

The high-quality steel construction ensures durability and long-term use, and the tool's heat-treated and oxidized finish increases resistance to damage and wear. Ease of use is a notable strength, with the tool designed for quick operation and stability, aided by its use in a bench-mounted or hitch-mounted vise. The T-handle screw clamp helps secure the dies and tubes firmly, making the flaring process straightforward.

However, the tool's weight of over 9 pounds and the need for a stable vise setup might reduce its portability for some users. This kit is a robust and reliable choice for those needing to create precise flares on various metal tubes, but its weight and setup requirements may limit on-the-go use.