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The separate TEST button also speeds fault detection
Beam Diameter: 2
we recommend inspecting and cleaning the optics system once a week and replacing the mirrors or focal lens as soon they get damaged
Surface Flatness: λ/4
9% of airborne particulates from your laser engraving exhaust
18mm CVD ZnSe Focal Focus Lens for Laser Engraver Cutter Rotary The separate TEST button alsoCutting Edge Features: HIGH QUALITY CVD ZnSe: OMTech's powerful focus lenses are manufactured from premium zinc selenium via chemical vapor deposition for superior optical properties. HIGH TRANSMITTANCE: Both sides of each lens are covered with strongly antireflective coatings to achieve at least 99. 5% transmittance rate for infrared light at a wavelength of 10. 6 microns. LASTING DURABILITY: Our laser engraver focus lenses' double sided coating
