Pedro’s Chain Checker Plus IIPedro’s Chain Checker Plus II is a three point chain wear tool that isolates pin wear from roller wear. The Chain Check Wear tool has two wear chain indicators which are 0.50% and 0.75% and has improved user instructions that are laser etched on the tool. The Chain Hook Tool simplifies chain removal and installation while the Chainring Nut Wrench removes and installs chain rings. Pedro’s Chain Checker Plus II is also approved by SRAM for use on Eagle 12-speed chains.790983296698