ATOMSTACK P7 M40 4.5-5.5W Laser Engraver Desktop DIY Engraving Cutting Machine. Newly Upgraded Ultra-fine Compression Laser: the laser adopts 4-fold lens group collimation and focus technology, the optical power is 4.5~5W, the laser focus area is reduced to 0.02mm², the high-density laser can easily cut 10mm thick wood boards and 6-8mm black acrylic ; Can directly engrave mirror stainless steel metal and ceramics. Upgraded Version of High-performance Fixed-focus Laser: Engraving can be done without adjusting the focal length; the newly upgraded compressed spot increases the energy concentration by 200%, and the spot size is only 0.02mm², which can take into account both precision engraving and high-energy cutting. At the same time, the laser power of fixed-focus laser is more stable than that of zoom laser. Easy Installation: The all-aluminum alloy anodized structure design makes the machine more durable and improves the accuracy of engraving. The portable all-metal structure, 85% pre-assembly, can be installed in 5 minutes. Buy this product and Get 59% Off ATOMSTACK P7 M40 4.5-5.5W Laser Engraver Desktop DIY Engraving Cutting Machine for now $207.99, Free shipping from United States.