18 mm Meniscus Focus Lens, CVD ZnSe CO2 Laser Engraver Focal Lens for 60W 80W Laser Engraver Cutter Pre-Order Now:Ships Early September and other nonmetallic materials

and other nonmetallic materials

Its clear design and detailed instructions guide easy setup and use

and a flame-retardant window

(0-240x30-60mm)

POWERFUL LASER TUBE: OMTech's 60W CO2 laser tube

18 mm Meniscus Focus Lens, CVD ZnSe CO2 Laser Engraver Focal Lens for 60W 80W Laser Engraver Cutter Pre-Order Now:Ships Early September and other nonmetallic materialsFEATURES: High Efficiency Meniscus Lens: This 18 mm meniscus focus lens from OMTech ensures improved beam concentration, boosting engraving efficiency by around 11% compared to plano convex lenses. High Quality CVD ZnSe: This CO2 laser meniscus focusing lens is made of premium CVD ZnSe material to ensure minimal distortion, providing a clear and sharp focal point for your precise laser engraving. Over 99. 5% Transmittance Rate: Both sides of the CO2