Two Trees 20W Output Power Laser Module For TS2 Laser Engraving Machine Can Cut 0.08mm Steel Support Air-assistEnjoy the Fun of DIY 1. 4 Beam compression technology, the most powerful 20W blue laser head on the market. 2. Cut through 10mm bass plywood by 1 pass Cut through 20mm pine plywood by 2 passes Cut through 8mm black acrylic by 1 pass and even cut the 0. 08mm thick stainless steel sheet. 3. With professional air assist to get clean cut edges, improve cutting performance 4. Excellent heat dissipation design, keep stable cutting ability and extend service