Snail Tools Ultra-Precision Fiber Laser Protection Lens (D27.9mm x T4.1mm)

Snail Tools | D27.9xT4.1 Protection Lens for Critical Laser Optics

The Snail Tools D27.9xT4.1 Protection Lens is designed to meet the strict optical and thermal requirements of high-performance fiber laser cutting machines used by leading GTA metal fabrication shops. This protective window acts as the final shield, isolating the expensive internal focusing optics from the intense cutting environment.

Manufactured from premium UV-Grade Fused Silica, this lens offers unparalleled clarity and a high damage threshold, ensuring consistent beam delivery for superior cut quality.

Key Features for Professional Laser Operators:

• Precision Fit: Featuring exact dimensions of $27.9\text{mm}$ Diameter and $4.1\text{mm}$ Thickness (D27.9 T4.1), guaranteeing a flawless fit and optimal seating within demanding laser head mounts.

• Optimized AR Coating: Coated with a proprietary Anti-Reflective (AR) film optimized for the $1064\text{nm}$ laser wavelength, minimizing power loss and preventing back-reflection that can damage the resonator.

• Exceptional Durability: The robust Fused Silica composition provides excellent resistance to thermal shock and pitting from debris, significantly extending the life of the lens under continuous, high-power operation.

• Sustained Performance: By maintaining beam integrity, this protection lens ensures that your CNC laser cutter delivers the sharp edges and tight tolerances required for complex industrial contracts in Ontario.