New 5081 S-Cam Air Brake Spring Tool For Semi-Truck Heavy Duty Tractors Trailers Features: Safely replace brake shoes on heavy-duty tractors and trailers Makes installing Q shoes a breeze Perfect tool for brake springs than using pliers and prybars. Works best for drive and trailer shoes. A MUST HAVE for heavy duty diesel truck repair shops. Specification: APPLICATION — Works great on tractor and trailer brakes, ANY heavy duty brakes! BENEFITS — This tool makes install spring on the S Cam Air Brake a snap. No more using vise grip and screwdriver to remove brake shoes. TIME SAVER — Best choice for doing brakes in a hurry. Serve as a lever against the axle to seperate the spring loop from the brake shoe. Safely replace brake shoes. MATERIAL — Corrosion-resistant & Durable Steel construction with extreme anti-wear property. EASY TO OPERATE — Simply hook the retaining spring loop and press down against the axle. This is the best tool for semi trailer brakes!