With a course center thread, the large wing nut spins down quickly to engage the provided aluminum adapter and hold the spring tension while removing the center circlip for complete disassembly. Includes a moveable sheave adapter for compressing the spring without disassembly of the drive clutch for weight or roller removal. Sturdy base is intended for clamping in a vise or bolting to a table. Tool for fast and easy disassembly of the Ski-Doo P-Drive clutch.