Chain Checker Plus II
Chain wear check tool, chain hook tool, and chainring nut wrench, Precision laser cut design accurately measures 0.5% and 0.75% chain wear, Three-point chain wear tool design properly isolates pin wear from roller wear, Chain hook tool and chainring nut wrench add functional versatility and value, Chain wear tool approved by SRAM® for use on EAGLE® 12-speed chains, Works on 1 to 12 speed chains