This tool is the world’s first portable tool made by Runwell specifically for the connection parts of NJS-certified chains, and is designed for practical use in the track field.

The BOUNCER is a specialized tool for turning bolts and nuts at the joints of truck chains. Combining the functions of a flathead screwdriver and pliers, the BOUNCER can be used to check for looseness, tighten, and remove plate nuts. The screwdriver and wrench are knurled for anti-slip performance, making them ideal for delicate work.

The groove in the 6mm wrench is equipped with a small but powerful neodymium magnet that holds small plate nuts after removal, allowing you to continue working without losing them on the floor.