20mm ZnSe Focal Lens 10600nm CO2 Laser Engraver Cutter Focus 1.5" 2" 2.5" 3" 4" 5" Optionable. 1x 20mm ZnSe Focal Lens 10600nm CO2 Laser Engraver Cutter Focus 1.5" 2" 2.5" 3" 4" 5" Optionable. Focus: 1.5" 2" 2.5" 3" 4" 5" Optionable.
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