I have a Bruno tools bit, too. Beverly Hills had a decent industrial base at one time, now overtaken by glitz. I have, over the years, owned at least two tools from companies - including Bruno - based in Beverly Hills.
In fact, at one time, the L.A. basin in general had a lot of manufacturing. I'm a Northern Californian, don't get down there much, but I believe there's still manufacturing going on there, but not at the same level.