xTool F1 2-in-1 Dual Laser Engraver with Slide Extension Click HERE for more information! Highest Speed, 10 X Productivity and Efficiency: The industrial-grade metal engraving machine can reach 4000mm/s. The fiber laser engraver for metal can engrave complex vector graphics in just seconds, making it ideal for batch-processing metal business cards, dog tags engraved for pets, jewelry, and hip flasks.