20mm CVD ZnSe Focal Focus Lens for 100W- 130W Laser Engraver Cutter Focal Length:2 in. (50.8 mm) this fiber laser lens offers

this fiber laser lens offers extreme precision and peak optical performance across its entire 150x150mm work area to get all your stone

6x7 in Primary Replacement Prefilter Pack

1 x Grounding Wire

Base Dimensions: 20” x 6" (49 x 15 cm)

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20mm CVD ZnSe Focal Focus Lens for 100W- 130W Laser Engraver Cutter Focal Length:2 in. (50.8 mm) this fiber laser lens offersCutting 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