The drill boy pet isn't that bad. It does NOT drill in a radius around you, it controls you and you drill across the map if need be (srsly). As of now it hasn't drilled on the same spot. It depends on your character's DA. So 100+ DA (or whatever) means light bulb/squigly 100%. It does this emoticon while you have the auto drill on: "

uppy:". It auto loots everything you drill up. It switches drills when your current drill runs out. You can afk while drilling =.=.
Apparently this is different from the jTO one eh?