Features and Benefits: OTC s S-Cam Air Brake Spring Tool eliminates makeshift unsafe methods of unhooking and reconnecting brake shoe retaining springs For use when replacing brake shoes on heavy-duty tractors and trailers Simply hook the retaining spring loop and press down Lever action agains the axle makes the job a snap Crafted from high-grade materials to ensure quality performance over the lifetime of the tool OTC s S-Cam Air Brake Spring Tool eliminates makeshift unsafe methods of unhooking and reconnecting brake shoe retaining springs. For use when replacing brake shoes on heavy-duty tractors and trailers. Simply hook the retaining spring loop and press down. Lever action agains the axle makes the job a snap. Crafted from high-grade materials to ensure quality performance over the lifetime of the tool. Value is at the core of the OTC tool and equipment portfolio. For a simple repair or the most complex drivability concern these award-winning tools universally solve problems faster and at better value than any other product line available. Whether it�s a specialty tool or unique piece of service equipment OTC provides top solutions to modern automotive service challenges while increasing technicians� productivity and shop profits.