Frees up frozen bleeder valves for easy removal A must for brake work and brake fluid flushing Keeps shop from turning flushing jobs away due to frozen bleed screws Uses air hammer to get the job done Saves time and expense of replacing calipers or wheel cylinders Helps keep shop and bay productivity high Has 3 different size adapters - fits most bleeder valves Comes in blow molded case Kit includes Driver, 3 adapters, asst of reinforcement rods, blow molded case