Things You'll Need
Dremel MultiPro Rotary Tool kit
Dremel cutting wheel attachment
The Dremel Multi-Tool, also known as the MultiPro, is a cordless high-speed rotary tool that can grind, cut and drill. The rotary design makes the Dremel MultiPro better suited for drilling and grinding. However, its heavy-duty emery cutoff wheel or 1-1/4 inch cutoff wheel can cut thin sheet metal with ease. The MultiPro kit comes with 16 different attachments, including grinding wheels, sanding drums, drills and polishing pads, making it a useful tool for many do-it-yourself projects.
Loosen the drill head with the kit-provided wrench.
Install one of the cutoff wheels or high-speed 1/8-inch cutter.
Place a strip of low-adhesive tape along the cut line to protect the top surface of the metal from scratches as you cut. You can also use the tape surface to draw your cut lines or designs in pencil.
Position the Dremel tool so the cutting wheel is perpendicular to the sheet metal to be cut. Hold the tool with both hands and do not cover the ventilation holes.
Set the RPM to 2000 by sliding the switch all the way to the left and press the cutting wheel onto the top of the sheet metal surface. Let the cutting wheel do the work; in other words, don't force the wheel through the metal. Once the wheel is through, pull it up out of the slot it just cut, and move to the left or right to cut the next slot, until your cut is finished. If you use the high-speed cutter, you'll start it on the edge of the metal, holding the Dremel tool perpendicular to the metal, pushing the cutter through the metal horizontally.