Stockton Brake Bleeder Tool The Stockton Brake Bleeder makes short work of bleeding your hydraulic brake lines and you don't need your buddy's help either. Do the job yourself and hit the saddle with full braking power. Features Suitable for most hydraulic braking systems Uses a one-way check valve to help prevent air from entering the system Simple operation for an individual to conduct routine maintenance Reduces fluid spill for a cleaner bike and workspace