KMC Digital Chain Wear Indicator - DIGITAL_CHAIN_CHECKER
KMC Digital Chain Wear Indicator - DIGITAL_CHAIN_CHECKER, KMC Chain Tools. Features: Stainless hardened metal body chain checker measures up to 2.5mm elongation and fits all chains including 12sp KM-9980 features an extra reversible pin for longer tool life KM9982 and KM-9984 help make master link installation and removal easy Specs: Description:digital stretch/wear gauge