my reviews: out of the five one took more volts all the other ones ran at 6 and ran ok for shading/fill but no cigar for lining!the clips are to soft and are not molded the same everytime. they get very warm as there is binding from the clips against the center top bearing. the front bearings have been put on a screw and the screw grinded flat to make it stay on which on the on made it take more volts as it made the bearing not spin freely. the bearings are a cheap grade that you would find in the cheapest 7doller skateboards-just a bit better then bushings. alot louder and more vibrations then the real deal! This machine is realy only good for the bottom frame and front chuck bracket as spares.
You can tattoo with it but you would not want to!