The swivel head design of the 6850-8 is designed with comfort in mind. With its variable speed and 4 amp motor, it handles solid 18 gauge capacity in steel, 20 gauge in stainless. It uses a three blade cutter design to give consistent cuts in a variety of materials. You have the ability to cut round, square and irregular holes. It can cut up to 15 feet per minute. This is a good low priced alternative to the larger models available.