It was requested that the bulldozer be allowed to clear out differently shaped ares such as 3x3 or 2x2 (basically for mining)

Will have to change the damage value on it accordingly and change how much damage each option does.

This will not be done.

The bulldozer was created with the intention of clearing a large space for creating buildings. It was not intended to go spelunking. There are many other mods which clear this amount of space and are more fun to use than what I would create (Tinker's Construct).

Closing issue.