VeinMiner doesn’t need much explaining, it’s just a simple mod that let’s you harvest large quantities of a specific type of block in the game with the press of a single button.
So let’s say you decided to mine stone with a pickaxe. All you would need to do is hold down the button assigned to VeinMining, and a large chunk of stone blocks that were connected to the first block you mine would all automatically get mined in a chain reaction, saving you the time it would usually take to mine all of them individually.
The same goes for dirt, wood and even ores found in the world. The only catch here is that the durability of your tools goes down faster depending on how large a chunk you mine.
You can get the VeinMiner mod here.