Expansion bolts for use with the Perfo Spe hand drill. The expansion bolts function as expansion bolts and later as screw anchors, onto which a hanger can be attached with an M8 screw. As its not rustproof and is very short, its durability is limited - as well as the breaking load. The application is improvised abseil points in speleology.
We would like to advise that the use of the Autoforeuse is reserved for specialists. Under no circumstances can they be used for setting up climbing routes.