Thin steel such as tin cans and razor blades yes, from up close, but these hand helds made from pump arrays lack the proper cooling for sustained work.
Very nice Paulostool, I'm a big fan of multiple beams myself, here's a thread I made of my multiple beam musings with some pics, I also have some new ideas that I hope to find time to work on someday.
https://laserpointerforums.com/threads/multiple-beams.106896/
Use the words : Laser Igniter Lens to search for the nir ar coated quartz beam expanders and optics on offer from China, they are the best deal.
Also, as I expect you know, those pumps output a knife edged beam bundle with each beam having uneven divergence.
Attention LPF members, for those of you who are unaware, there is an ignore button, just click ( Aorus Forever ) then click ( ignore ) same as I did just now, and the troll's rantings will be no more.
Well..... the category is " other " and there's about diddily squat going on here..... just thought it might be of interest, also I suppose optical computers have a potential to be used in future land/building based AI to reduce the huge power demands, but that's yet to be determined...