this bead breaker worked great for me, both tightening nuts took a large 11/4 wrench...have two trailer tires that were rusted bad, many years setting outside...popped them off with almost no afford...I had tried everything including a midsize tractor backhoe using the standards to try and break the bead ,did not work ,but this thing did...use hand pressure only on this device no impact wrenches and you should be successful..I am happy with the investment