It's an anchor for climbing on ice. People like to go rock climbing, this is the same but for glaciers and whatnot. I bet you can also take them mountaineering, 'cause there will be enough packed snow/ice on summer mountains that you can use these to anchor your gear in windy conditions.
i'm surprised the friction of tapping the hole doesn't partially melt the ice around the hole. if you've ever had the misfortune of touching a screw after it's been turned you know how hot they can get
Wood screws compress the material they're drilled into. As this happens, the material presses into the screw and causes a strong friction which makes the screw hot.
The ice screw used here is a hollow tube with a blade at the end. It's basically a drill and a tap all in one.
Since it directly removes the ice from the center of the hole, the ice doesn't squish back and compress against the screw. So there isn't much friction there.
Coolest thing to me is that the excess ice is dumping out of the middle of the screw itself.
Yeah, I was JUST thinking about how the chips are removed when he moved his hand and started cranking and the shavings started pouring out!
I was wondering how it would handle the shavings. Turns out it’s hollow.
haha
Cool
What’s the point?
It's an anchor for climbing on ice. People like to go rock climbing, this is the same but for glaciers and whatnot. I bet you can also take them mountaineering, 'cause there will be enough packed snow/ice on summer mountains that you can use these to anchor your gear in windy conditions.
It doesn't have a point, they keep it hollow to allow ice to be ground down and ejected out the back.
They have teeth like a saw
i'm surprised the friction of tapping the hole doesn't partially melt the ice around the hole. if you've ever had the misfortune of touching a screw after it's been turned you know how hot they can get
Wood screws compress the material they're drilled into. As this happens, the material presses into the screw and causes a strong friction which makes the screw hot.
The ice screw used here is a hollow tube with a blade at the end. It's basically a drill and a tap all in one.
Since it directly removes the ice from the center of the hole, the ice doesn't squish back and compress against the screw. So there isn't much friction there.