OD Cylindrical Finishers operate on the center less principle, but they are not the same as center less grinders. They do not produce close tolerances because of the resilience in both the finishing medium and the regulating wheel or belt. These finishers are suited to a wide range of applications including decorative finishing, surface improvement, cleaning, deburring and roughing prior to center less grinding. One of the strengths of these finishers is that the regulating wheel is mounted on a pneumatic slide, allowing it to finish parts of a widely changing diameter, such as aluminum baseball bats.