The Park Tool Freewheel Remover is designed for common thread-on 5 to 10-speed freewheels, including Shimano, Sachs Aris, Sun Race, and DNP Epoch. You'll simply need an adjustable wrench or bench vise to remove and install freewheels, thanks to the tool's one-inch hexagonal base. It features 12 splines and a 22. 6-millimeter diameter, complete with an enlarged thru-hole to accommodate 14-millimeter axles.