OMTech 80W CO2 Laser Tube for Laser Engraver & Cutter Machine, 1250mm 80mm Dia Laser Cutter Tube with Metal Head 10000hr MTTF, Laser Cutting Engraving Machine Replacement Tube for Wood Acrylic Stone. 80W Laser Tube: OMTech's 80W CO2 laser tube, with tempered borosilicate glass, premium II-VI infrared lens, gold catalyst coating, and 10,000 hour long service life, ensures powerful and stable laser beam for optimal performance. Precision Masterpieces: Achieve precise cuts using your laser engraver and cutter machines with this single-mode laser cutter tube, which features a 5 mm focused beam spot and an American II-VI infrared lens for reduced light attenuation. Safe Operation: With integrated water tubing and ports, our laser engraver replacement tube allows for efficient cooling and easy connection to a water pump or water chiller, while the hermetically sealed borosilicate glass case offers exceptional durability. Wide Application: This 1250 mm (49.2") long 80 mm (3.1") wide laser tube operates at 22kV and 5mA for engraving acrylic, cardboard, ceramics, fabric, glass, leather, paper, stone, wood, and more.