CNCOLETECH CO2 Laser Lens Dia:15mm FL:2 or 50.8mm Laser Mirror CVD ZnSe Focus Focal Lens for CO2 Laser Engraving Cutting Engraver/Cutter 40W-200W

good quality

Better replacement for the boss laser. Working great better than the original one that came with the laser.

Very good quality. I recommend it

El producto es bueno ,pero la empresa de transporte nefasta y no es la primera vez.

Works

I had red reviews about the dimensions being off. Mine was dead on, as checked by my digital calipers.

This was a great replacement Focus lens for my 40 watt unit. I would buy it again

smaller than others I have ordered but still worked

12mm lense is head and shoulders above the one that came in my k40.

Very well packed. Outside plastic bag, then a box with foam, then a smaller plastic bag on the box and then the lens wrapped in tissue