The versatility with the foot pedal, a 1/4" chuck, and having much more power makes a huge difference between this and a dremel type tool. The pedal's ability to start with rpms at a snail's pace makes up for being a bit too sensitive, and rpm can increase rapidly with little input. May be more convenient to use an adjustable knob set-up for long duration use. The chuck takes a lot more key rotation to change diameter than a normal drill, and can be frustrating as it can hang-up on the sharp corners of the handgrip, but can be remedied by filing a chamfer on corners (see pic). That and the fact that upon initial inspection I used the supplied allen wrench to remove flex cable from motor to find no lubrication on inner cable. I added wheel bearing grease to the cable and reinstalled without any issue as well as taking notes to order a new replacement cable in case of eventual failure. I wish I had a tool like this years ago but could only dream of it as the price of over $300 was prohibitive. I'm extremely pleased with it after the file mod and realize that it may have been a safety concern for not having the chamfer from the factory.
Kim Leland 
