The Capri Tools Double Flaring Tool lets you create perfect 45-degree SAE double flares in half the time compared to old generation flaring tools. Its compact and portable design lets you work both off vehicle and on vehicle, even in tight spots. The die can be detached so you can also work with a bench vise for more grip. The tool works flawlessly with 3/16 in. steel, nickel, and copper tubing. This is an all-in-one tool. A 10 mm and a 17 mm wrenches are the only other tools you need to start making perfect double flares.