Mopa Laser
Laser cuts metal by using light. To be able to cut and pierce metal, light is concentrated at a single point. You can think of a magnifying lens that can be used for focusing sunlight onto a single point to burn it. This is how cutting with light works.
Triumph's 30-W desktop fiber laser can be used to create two lenses. The first gives you a 4.3 inch x 4.3 inch engraving area and the second gives you a 7.8 inches x 7.8".