You have been looking everywhere for a tool that climbs ice well, has a usable shaft for mountaineering and is light enough that you wont notice on your pack during a ski tour. You have been looking for the Petzl Aztarex Ice Tool. At a scant 500g you will hardly notice it on your pack. A removable GripSwitch allows leashless use or can be stored in the shaft for a cleaner profile when plunging. The weight of the Aztarex is concentrated on the head to allow better penetration and the curved shaft makes hooking easy.