My idea for a drill, Is a block that you can pick up by holding "shift" then right clicking on the drill machine block to pick it up, no wrench required. I think there should be two variations, steam powered and electric. Heres the catch, it requires dynamite to mine. could also use mining pipe, drill tips and maybe coolant for the drill tip. Maybe someone could make dynamite that has more kick(break obsidian). The drill block would not break any blocks, the dynamite would do that, just to be clear.
[drill]--+--+--+
"+" = where dynamite explodes, "-" = the space between.