When I used to be on the Chevelles.com web site there was always someone breaking a lug off of a carb or stripping threads. Thread cleaning taps are another good thing to have around just to clean buildup out of threads. Aluminum is especially prone to picking up on steel. At work, I did a lot of helicoil and keensert installs. They sure are handy when things go wrong and I have a good selection. It isn't always us ham fisted guys who are the problem. Steel bolts can often weld themselves into threaded holes. The aluminum threads then has a bad habit of coming out with the bolt. That is where the Kopr Kote comes in handy. I keep a can of it on hand too.
Love a joke. No one sends around more of them than me.