The block destroyer is used to, as you might guess, destroy blocks. It's a multi-block that operates on a machine frame and targets the block layer directly below the frame.

The time and energy required to break a block depend on the block's hardness. The block destroyer attempts to destroy all blocks one layer below the frame. To enable farming use, the crop filter addon can be installed, which causes the block destroyer to skip all non-finished crops.

By adding quarry addons, the block destroyer can also function as a quarry. Each quarry addon multiplies the (downward-) range by 8.

This means one addon provides an 8-block range, two addons give a 64-block range, and three addons extend it to a 512-block range.

The default speed will be quite slow when used as quarry, so some speed and efficiency addons are a good idea.