[US/EU Direct] Atomstack S20 Pro X20 Pro A20 Pro 130W Quad-Laser Engraving and Cutting Machine For Wood Metal Acrylic 20W Output Power Built-in Air Assist System 0.08 * 0.1mm Compressed SpotWhy You Choose ATOMSTACK S20 PRO Laser Engraver? Brand engraving machine, more professional. The ATOMSTACK brand has a professional technology and development team, and has its own factory to control the quality of production. Powerful cutting ability more powerful engraving ability, Able to cut metal, like a wild beast, one time cutting 12 15mm thickness solid wood. Equipped with an air assist pump. 20W engraver is equipped with 10 30L Min air assist