Here's what other sites are saying:
The Petzl Multihook can be used for a number of things, like threading your anchor and clearing the tube of an ice screw, or you can take it rock climbing to clean stoppers and cams. The 8mm wrench incorporated below the handle gives you a convenient way to tighten your bolts right after you thread your anchor.
True to its name, Petzl's Multi Hook is the can-do tool for your next ice climbing adventure. Equipped with a long, hooked stem, you can snag ropes and disengage camming devices or use the wrench at the end of the shaft to adjust bolt hangers.
- Mountain Gear
The long stem can be used to clear the tube of an ice screw.
Useful for removing wired nuts and disengaging cams, this long and very narrow multihook can also clear out the tube of an ice screw.