Single & Double Flare Tool AF98-2057Single & Double Flare ToolHand Held Flare Tool 45 AF98 2057 98 2057 The Aeroflow hand held brake flaring tool is the fastest way to get a professional single or double flare while the hard line is still installed into the car and in hard to access areas on vehicles or onsite. This 45 degree flaring tool produces convex and double flares to SAE and DIN standards while the smooth die does not mark the tubing. This tool will only with 4. 75mm (3 16)