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 SRAMA(R) eTapA(R) AXSA(R). The CT-3.3 features an adjustable 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. CT-3.3 FEATURES a Compatible with single-speed bicycle chains including 1/8", 3/16" and half-link a Compatible with all 5-speed to 12-speed bicycle chains* including SRAMA(R) eTapA(R) AXSA(R) and ShimanoA(R) XTRA(R) 12-speed a Replaceable pin (part #CTP)