1. Made of high hardness carbon steel, Some parts of the tool surface plated with nickel,very durable. 2. The Bicycle Mountain Crank Puller Suitable for square tapered crank sets, for removing chain-rings and crank. 3. With a shelf for loosening tight links. 4. The Bike Chain Breaker used to remove and install chain pins or other repair work,it can works for all common bicycle chains. 5. Quickly and accurately remove and install chain pins.
