Which Laser Is Best for Glass Cutting? When precision edge quality and complex shapes matter, a UV glass laser cutting machine outperforms CO2 and mechanical cutting. The 355nm ultraviolet wavelength delivers cold ablation, meaning the laser vaporizes glass material without heating the surrounding area. This eliminates micro-cracks, chipping, and thermal stress that would otherwise weaken display glass. The result is a cutting edge that is smooth, crack-free, and requires no