Motion Pro Mini Bleeder Tool for 11mm bleeder screws. This tool combines wrench and bleeder check valve into one compact tool. Assists in bleeding air from hydraulic brake and clutch systems. Compact size for tight spaces. Anodized billet aluiminum wrench with Cr-Mo body and vinyl tubing. High quality internal seal resists deterioration from hydraulic fluids and shop chemicals. Fits bleeder valves where you would normally use an 11mm wrench to turn them.