25mm diameter lens tubes with ZnSe focus lens. or 3pc Kit +Alignment Tool

Awesome lenses

So far I have only been able to use the 4" and the 2" lenses but they are both great and give me a lot more flexibility than the single lens that came with my Omtech machine.

Solved my problem

Thanks to your lenses my machine is now cutting better than ever. The reverse alignment tool helped me locate the biggest problem. That is how I found the 3rd mirror was slightly turned and out of parallel with the beam. 150 w machine can now cut 3/4" acrylic

Great lenses

Their lens quality is excellent. And the reverse alignment tool that comes with the kit is a great time saver. A laser is just a big optical device. Cheap lenses will yield a poor product. These lenses are superior to anything I have used.