Professional reliable bicycle chain breaker, with a long lever and a 42cr chain splitter for easy chain link removal and replacement. Easily adjustable fixing screw to fit different chain widths - 5/6/7/8/9/10/11/12 speed. Compatible with Sram, Shimano, KMC and Campagnolo brands. Precise work: The chain breaker tool allows you to cut and rivet your bike chain easily and precisely. The chain pin push rod is precision-made, with a center-locking screw to secure the chain in place, allowing precise insertion of chain rivets. Comes with two spare emergency pins, the fine threads and appropriate size allow easy removal of even the toughest rivets.