The CT-3.3 is a professional shop-quality tool for removal and installation of bicycle chain rivets for chain sizing and replacement. Compatible with virtually all single-speed and multi-speed chains* including SRAM Flattop and SRAM T-Type. The CT-3.3 features a floating locating shelf for compatibility with any width of chain. Built to last and easy to use the CT-3.3 features a comfortable handle investment cast steel body and replaceable driving pin for years of dependable use.Compatible with single-speed bicycle chains including 1/8" 3/16" and half-linkCompatible with all 5-speed to 12-speed bicycle chains* including SRAM T-Type SRAM Flattop and Shimano XTR 12-speed*The CT-3.3 will install and remove but not peen Campagnolo 11 12 and 13-speed chain rivets