Save time by having the ability to bleed brakes by yourself. Our convenient kit offers all the popular size wrenches needed to crack bleeder valves free. This kit features 8 mm, 10 mm, and 11 mm wrenches which also fit 5/16, 3/8, and 7/16 bleeder valves. The One way check valve in the tubing means no air gets pulled back into the system while you pump the brakes. Pick up your kit at Eastwood.com.