AtomStack A40/X40 Max Laser EngraverMain Features: 1. High Power: AtomStack A40 X40 Max, the cutting edge laser engraver, has the highest 48W optical power in the industry for professional work and greatly improves work efficiency. He can cut through 18mm basswood, pine and tung wood, 9mm mdf density board and 0. 1mm stainless steel sheet at one time. 2. One Key Switch Engraving Cutting Mode: AtomStack A40 X40 Max adopts a new laser design, it can switch between 24W and 48W output power