I broke one of the welds on it breaking a cam bolt loose. I have mangled the Kraut ones and never broken anything.
I have done this hundreds of times in the last 25 years and never broken the cam.
I've had about a dozen break while loosening.. Watched about 2 or 3 others being broken.. And have sold a pile of used cams to those who have broken them, although I can't say for sure on all of them whether is was assembly or disassembly that broke em.. I'm pretty confident that those that broke had something done improperly at some point.. At least 3 had loctite.. Maybe your nice Phoenix weather makes the come apart much nicer..
I'd guess the road salt is a player in the equation.. Damn stuff get's everywhere.. A couple of the cams I broke snapped pretty easily with a plain ole box end wrench... Possibly cracked/weakened from previous shenanigans?? The 90 degree impact wrench has been a good investment for this so far...The one in my Rabbit I have now is broken, but has been running in there for years with no issue.. It's just missing a small chink though, not even into the bearing surface.. Someday I'll find the SOB that felt the need to loctite EVERYTHING on that car..