Both these things are very likely to break down. Using a drill as a human with hands is easy. Using a drill on another planet where any jam or failure is perm

Both these things are very likely to break down. Using a drill as a human with hands is easy. Using a drill on another planet where any jam or failure is permanent is staggeringly hard. A robot can't just chuck up a bit, or wipe down dust and dirt which is stopping something from working. Or quickly regrease a bearing. Ultimately one of the best arguments on favor of manned exploration is that despite our robotics, a human in a space suit with a shovel would get an incredible amount done in a few hours. EDIT: drills have flown, but they are limited in capability.