Place the protective tile onto your work surface. Place the vinyl tile you are cutting on top of the protective tile.
Measure the area you would like to cut. Hold the metal ruler firmly along the cutting line.
Grip the craft knife in between your ring finger and index finger, and allow the thumb to gently rest on the side. Score along the edge of the metal ruler, applying pressure with the craft knife onto the vinyl. Remove the metal ruler. The craft knife will have created a clean, straight cut through the vinyl.
Insert the piece of vinyl into the designated section of the tile cutter.
Arrange the tile so that the area you wish to cut is directly underneath the top cutting ruler. Put on the protective gloves and goggles.
Keep your fingers away from the cutting blade. Push down the arm of the vinyl cutter, and apply pressure. Lift up the arm, and remove the two pieces of cut vinyl.