Ice Toolz Chain Checker

This stainless steel go/no-go chain checker operates in a simple, foolproof fashion. The side of the tool is etched with these simple instructions: First, insert the tool into your chain. If the indicator end sticks out, the chain is still usable. If it drops in all the way, your chain is worn and should be replaced. This chain checker is flat and a mere 5 inches long, so it fits easily into any tool box.