As the owner of several Dremel rotary tools, two of which run on lithium batteries, I first wondered how it could be better - - God, I was right or wrong, whichever side of mine discussion I was in. I love him! I mainly use it for gunsmithing and it's much more convenient than a dremel. The foot pedal provides smooth and linear speed control, adding a whole new dimension to instrument control and flexibility. The handpiece is also more accurate and easier to use due to the smaller handleβ¦