Stash it away in your pack for in-the-field binding adjustments and repairs. This tool has PoziDriv #3 on one end and Torx T20 on the other. Pozi3 is the ski industry standard for binding mounts and the only tool necessary for all adjustments on G3 bindings.Torx T20 is used by other tech binding manufacturers making this tool useful for all backcountry skiers.