As an experienced guide and ice climbing instructor in Argentina, I can confidently say that the Black Diamond Ultralight Ice Screws are unmatched. The screw’s thread design, featuring a conical shape, is exceptional and allows for smoother placements with much less effort than competing brands. I previously used Petzl screws but have now nearly replaced all of them with Black Diamond's, which are significantly superior. The aluminum construction makes them incredibly lightweight, and they’re remarkably easy to place, even in challenging conditions. These are hands down my favorite screws among all brands I've tried. An outstanding product, highly recommended!
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