sentences:  It must be adjusted for different diameter wheels, it makes metal on metal contact with the rim, and can easily scratch and mar the surface of aluminum or painted wheels, it takes a bit of coordination and balance to use as you have to stand on the tire and use your body weight to operate the tool, and it is also fairly large, but ultimately is portable and is often used at race tracks for pit-stop tire changes.Ultimately, this type of bead breaker also struggles to work reliably on very stubborn ATV tires, 4x4 trucks, and tractors.The cost of the Plier-type is variable, form $75 to $200, and is manufactured by multiple companies.