The Park Tool SR-18.2 Chain Whip is a heavy-duty tool designed for removing and installing 1/8″ fixed-gear and single-speed cogs. It features a long, ergonomic handle for extra leverage and a heat-treated, hardened steel construction for durability. The precision-cut chain ensures a secure grip on the cog, making removal and installation easy and efficient. Ideal for track bikes, fixed-gear setups, and single-speed drivetrains, this tool is a must-have for home and professional mechanics