Specifications Diameter: 27 mm Thickness: 2 mm Transmittance: 99.99% Suitable for laser welding gun or fiber laser welding cleaning machine DoubleSided Coating Protective lens uses quality coating technology with a doublesided coating Provides longer service life and greater durability Protects the lens from splashes and other contaminants to extend life Safety and Ease of Use Designed with a 0.5 mm protective edge and a 45degree protective fullangle design Easy to apply and reduces the risk of finger injuries Compatible with laser welding equipment Transmission Clear optics with transmission and good abrasion resistance Light transmission rate up to 99.9% Enables efficient laser beam transmission and a clear working view Use Scenarios Used with handheld laser welding guns for precise, smallscale welding where lens protection is essential Integrated with fiber laser welding cleaning machines to protect optics during weld cleaning operations Suitable for production line laser welding stations requiring durable protection to maintain beam quality and operator safety