OTC Tools OTC 5728 Tire Bead Breaker Unique head is designed to provide a large striking area for all angles, while providing the mass needed to break the tire bead. This design puts the force exactly where it's required and eliminates the possibility of accidentally hitting the wheel, problems typically encountered while using larger swing hammer style bead breakers. Excellent for damaged tires or tires with weak sidewalls where conventional bead breakers will not work.