BBB 'CHAINCHECKER' MULTI-TOOL with CHAIN HOOK & HEX WRENCH

BBB - CHAINCHECKER

Easy to use chain wear checker tool. 
When the 0.75 (75%) wear is reached the chain must be replaced soon.  When the 1.0 (100%) wear is reached the chain must be replaced instantly.
Integrated chain hook holds links during assembly.
Added valve tool and 5/6/8mm box wrench makes this a unique chain checker & multi-tool.