Strong function: It both could do engraving and cutting work, for Non metals. Such as acrylic, plywood, paper, fabric, leather, plastic, PVC, MDF, double Colour plate, etc. MICRO laser machine steel shell is thicker than normal machine, makes the work precisions higher. Perfect security protections: water cooling alarm system. Electric protections: MICRO use 15A-20A fuses, 3P switches, and relays protections.