Phoenix Systems (2003-B) V-12 Reverse Brake & Clutch Bleeder Kit, Medium Duty One Person Bleeder, Hard Case Patented Reverse Bleeding removes more trapped air than any other brake bleeder by simply pushing Brake Fluid fluid from the bottom up. Reverse bleeding is the only method capable of bleeding tough ABS units without a scan tool. Allows you to refill and bleed a completely dry brake or clutch system. Perform Reverse, Vacuum, Pressure and Bench bleeding all with the same tool. The V-12 is considered a Medium Duty tool for average shop use. Compatible with DOT 3, 4 and 5.1 brake fluid. Comes with a injection molded hard case. Is the easiest one-person bleeder you will ever use. No more asking your co-worker to help you finish a brake job.