The unit works for repetitive installations such as glazing, racking and ledgers. It is a fully-removable 1/4-in. screw anchor.
You can use a corkscrew as a clever kitchen hack to remove stubborn drywall plugs or insert a screw into the anchor so you can grip it with something and pry it out in seconds. Needle-nosed pliers ...
Refer to the package or manual for drill bit size. Different-sized anchors require different-sized holes and screws. Tap the anchor with a hammer until the head is flush with the drywall.
The video by Petzl that demonstrates proper ice screw placement technique, as well as how to set an anchor and a v-thread in waterfall ice. It's clear seven minutes don't suffice to cover all ice ...