The 78613 Astro Pneumatic One-Person Brake Bleeding Wrench Kit w/ Check Valve is ideal for brake bleeding without removing the wheels and/or raising the vehicle. Speed bleed brakes from the drivers seat without monitoring the bleeders. No drip design made possible by the check valve design. Tool wont bleed unless pumped. The one way check valve also eliminates air and old fluid from entering the brake system.
The 3 different wrench sizes (8mm, 10mm, and 11mm) seal to the bleeder valve, and tighten or loosen the valves without breaking the seal.