Fast vertical drilling but requires fuel and two people to operate. Craft in two or more pieces like the robot boss.
This could be a less convenient form of drill. I'd say that it only require one player to operate just so solo players dont miss out on it entirely. This would be very useful in early on sectors. Perhaps it could destroy ore to prevent abuse as a way to get resources. I imagine this mostly as functioning as a way to quickly get to the core of a planet faster in lower sectors (because with only a silver pick, the task is rather daunting).
The easiest and quickest way it to get a grapple, however if you don't have a grapple yet, it will take a bit more effort. The way I do it, is dig a 3-block-wide shaft straight down in a chosen area, patching up the walls as I tunnel into and through caves. If you have a grapple, that's enough, if you don't you need to place platforms with 8 blocks of air in between them, which is the maximum jumping distance without abusing the 1-block-high climbing mechanic, which doesn't always work. You place the platforms in a zig-zag pattern, making descent as easy as running side to side and ascent by jumping side to side. It's a highly risk-free method and can be done very quickly with a diamond drill. Torches on the ends of (or the wall opposite) the platforms are optional. For a quicker descent, 5+ blocks tall pond can be created at the bottom, allowing you to just hold down S and tap Space in order to jump down straight into the water, ignoring all platforms altogether. It's fun, simple and actually makes use of the tools given, which is how a game should be like -- working within constraints set by the developer, as opposed to asking for everything to be given to you.
Lol. Im suggesting an addition to the game. I know how to the game is played. didnt need that. anywho.. maybe active the drill when players step on either side. I dont think that image is working.