Petzl Sum'tec Adze Ice AxeA compromise between a classic mountaineering ice axe and an ice climbing axe, the SUMTEC is a versatile, lightweight, technical ice axe. It is easy to use in piolet canne mode with its stainless steel spike and its slightly curved shaft. In piolet traction, the ALPIX pick (forged into banana shape) and the new TRIGREST hand rest (adjustable without tools) ensure the efficiency required for technical passages, as well as bergschrunds, ice gullies