Originally Posted by Mirae
I'll be a little more specific.
You require to have a Driller Boy/Girl, which is in MyShop once in a while depending on when Ntreev decides to put it in.
You need to have multiple drills with Life. The reason is because Driller Boy/Girl automatically switches drills when the one you have equipped is all used up. When all the drills in your inventory have been used up, you stop.
I believe you can be canceled out of afk-drilling. That means that you should not drill in a map where monsters can aggro you.
Be sure that you will have enough space in your inventory and weight. Everything you drilled, your character will pick it up..