Sometimes an all-aluminum axe just isn't burly enough to get the job done. Camp USA's Corsa Nanotech Ice Axe combines the ultra-low weight of an aluminum ice axe with the excellent hard-ice penetration of a steel axe. The 8. 8-ounce Corsa Nanotech uses aluminum construction in the shaft and head but includes a light, strong Nanoflex steel pick and spike for better hard snow and ice penetration.