Id have to guess between 4-6 bombers at best. I could be off. 4 bombers is awfully a lot of "lunch beers" unless you are working from home and dont mind on working while drunk
By the looks of it, you can't fit one bomber in those "personal fridges"... a sixpack stacked in that direction is under 8" tall and a bomber is close to 11".
It fits a six pack, I haven't checked to see if bombers fit yet! Mostly it will hold two cans (soda and beer) and a sandwich.