Manual bead breaker loosens tire bead from rim. Works on tire without removing the wheel from the tractor. Will also handle 38" and 42" 14 ply farm tractor and backhoe tires. Use also on small ATV and lawnmower tires. Do NOT use with Air Impact Wrench ESCO Manual Bead Breaker is used to loosen the tire bead from the rim with leverage. Operates with a air ratchet wrench.