1. Authentic Raytools – Original & OEM Options
Original Raytools lenses feature laser-etched branding. OEM versions meet identical optical specs at a lower price. Both offer >99.5% transmittance @ 1064nm.

2. Available Sizes by Application

• Ø24.9×1.5mm – Lower protective window for Raytools BM109/110/111 cutting heads

• Ø27.9×4.1mm – Lower protective window for Raytools BM114 high-power cutting head

• Ø20×3mm – Protective window for Raytools BW101/BW100 handheld welding head

3. Fused Silica with AR Coating
Made from JGS1 fused silica with double-sided anti-reflection coating for 1064nm fiber lasers. Replace when pitted or hazy to protect internal optics.