
High quality 20mm ZnSe focus lens for a Co2 laser.
Diameter:20mm
Type: Positive Meniscus Focus lens w/ imported material
Base: ZnSe
Focus: 68.5mm
Laser type: 10600nm CO2
Cutting: Very good 6mm acrylic, 20mm wood
Engraving: Good
Suggest laser tube used: 100W or above