6-point Hex Brake Bleeder wrench. Allows you to complete a brake bleeding service without removing the wheels and/or raising the vehicle. You can bleed brakes from the drivers seat without having to open and close bleeders. No drip design made possible by the check valve design. Tool won't bleed unless pumped. Wrench seals the bleeder valve, and tighten or loosen the valves without breaking the seal. Whether tuning up your '68 Corvette or changing the oil on a John Deere tractor, CTA can supply you with the tools needed to do the job. California Prop 65 - Warning, This product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.