3 in 1 Bicycle Chain Checker Bike Chain Wear Indicator Tool Bicycle Chain Hook Bike Bolt Measurement Tool

3 in 1 bicycle chain tool, used as bike chain wear indicator, also as chain hook and bolt measurement tool.

304 stainless steel for rust-resistant, depolished surface for skid-resistant.

High hardness for wearable and durable, high precision for accurate indication.

As a chain hook for easy to deal with chain repair problems.

Simple and quick to measure the diameter and length of bolts.