Get the job done in half the time: this compact and portable Dual Head Flaring Tool lets you easily create both ISO/DIN bubble flare and 45-degree SAE double flare on 3/16 in. (4.75 mm) tubing such as brake lines. Works flawlessly with 3/16 in. (4.75 mm) non-stainless steel, nickel, and copper tubing. Single die creates ISO/DIN bubble flare, SAE double flare, and SAE bubble flare. Compact design lets you create perfect bubble and double flares both off-vehicle and on-vehicle, even in tight spots. Detachable die lets you also use with a bench vise. All-in-one tool. All you need is a 10 mm and a 17 mm wrench to work with the tool.