This is a good set of cordless rotary tools for light work. It charges via a Type A USB cable. Significantly smaller than the Dremel 400 XPR in the attached image, it is more maneuverable and lighter. It comes with 6 different sized collets (instead of the 5 shown in the Revain listing) for use with different sized bits including a wide range of Dremel bits. The slower 2 of the 5 available speeds are very useful for fine detailing plastic for my model making hobby. The supplied bits offer a wide range of applications from polishing to drilling, grinding, cutting and grinding. The entire set comes in a handy zipped soft case. Zekbean has created a very useful tool for working with details.