Review on Enhance Braking Efficiency with the Russell 639520 Speed Bleeder by Paul Lee

Works I don't know what else to say. You don't have to open them until they come loose. In fact, it destroys the seal on the threads that makes them work. I used them to bleed my own brakes and clutch. Once the system is completely clear, you can screw the drain line back into the reservoir (assuming you KNOW it's clean) and just pump endlessly without refilling until you have the last little bubble. That saved me a lot of time.