This particular laser has a diameter of about 3.35mm at the aperture. Obviously it isn't DPSS, so we can't get insanely thin output. But to help with that and to assist with divergence, I set the laser to be very very gradually convergent for the first 6-9 meters, so it should be 3.35mm or under for a pretty good distance. It is honestly a very beautiful laser and I am constantly beating myself up about selling it.....
UGH. Maybe I will take that one off of the chopping block and put up my 2.5W MS-SSW build. That way I still have a 445.
UPDATE: I have added my MS-SSW 2.5W 9mm Build, my CNI GLP 532nm Laser, and my Laserbtb 520nm >5mW Laser.
I have pics up for the MS-SSW and all the others but I don't have pics up of the GLP or the Laserbtb yet. All of the lasers that I have put up for sale are the ones that when i got decided they were keepers. I go through a lot of lasers looking for the perfect ones and these made the cut. Only reason I am selling them now is due to a focus shift to completely custom built rare wavelength lasers and a realization that I don't give them the usage they deserve.