Designed to provide you with a better sports’ bicycle experience the PRO Cranktool is a two-in-one cotterless cranktool, developed for the removal of both cartridge and octalink cranks. It features a hardened steel construction, a long handle for increased leverage and a dual compound grip, for comfort. Details - Easy disassembly of square or octalink cranks. Shimano compatible. Comfortable handle for a secure grip