18mm Focal Focus Lens by American Photonics for Up To 200W CO2 Laser Engraver Cutter Air Purifier airflow through both of its

airflow through both of its tubes to pull in exhaust and purify air during any laser engraving project

H4 100W CO2 Laser Tube

1x CO2 Laser Tube

and spacious working area over 1

18mm Focal Focus Lens by American Photonics for Up To 200W CO2 Laser Engraver Cutter Air Purifier airflow through both of itsAdvanced Specifications: Diameter: 18mm (. 708") Anti reflective coated lens for <200W Type: Meniscus Laser Focal Lens Material: Znse Laser Grade (made in the USA) Coating: 10. 6um (AR Both Side) Diameter Tolerance: +0 0. 13mm Center Thickness Tolerance: 0. 1mm Focal Length Tolerance: < 1% Clear Aperture: >= 90% Diameter Scratch Dig: 40 20 Cutting Edge Features: OMTECH TESTED: Each American Photonics focal lens is tested on OMTech machines and