Plasma cutters take advantage of the fourth state of matter, plasma, made by boosting a gas (typically nitrogen, argon or oxygen) to a very high temperature, creating a stream of directed plasma that can reach approximately 30,000 degrees Fahrenheit. As a result, plasma cutters are the preferred way of cutting and fabricating metal - from thin sheets, to thick beams. And, thanks to advances in technology, plasma cutters are smaller than ever, and are now easily portable.

If you are considering purchasing a new plasma cutter, keep these basic questions in mind:

1. What thickness of metal will you be cutting? Different power level plasma cutters are rated for various thicknesses. The smallest plasma cutters typically are able to cut 1/8-inch of steel, and 1/16-inch of other metals like aluminum, brass or copper.

2. Do you have the proper electrical outlets available near where you will use your plasma cutter? More powerful plasma cutters require higher voltage power.

3. Does the plasma cutter include a pilot arc for cutting through grates, chain link or other perforated metals?

4. What type of warranty does the plasma cutter manufacturer offer? Given that even the least powerful plasma cutters are fairly expensive investments, you will want to make sure your new purchase is well warrantied.

5. What is your budget? Plasma cutters vary in price by manufacturer, special features they may offer, size and power level.