[peiserma]

I know this thread is a little stale, but I just wanted to say that the grease and air compressor trick worked like a champ. I ended up having to drill out what was left of the existing threads to install the HeliCoil; I used grease on the bit, drilled a little, blew out any chips the grease did not catch, and repeated until done. Tapping the hole was done using the same steps. The air compressor works great to clean off the chips on the drill and tap, too.

Anyway, it worked great. Thanks!