The SR-18.2 Chain Whip securely engages 1/8" fixed-gear sprockets and single-speed cassettes during the removal process, making it an essential tool for bike maintenance. The SR-18.2 also incorporates a 1" box-end wrench to drive Park Tool Freewheel & Cassette Lockring Tools. The tool is heat-treated to prevent bending or flexing, and features hardened pins to keep the chain in place. Long ergonomic molded handle provides leverage and extra comfort.