Rivet Nuts (WHOA! A NEW POST)

OK, back on the wagon. Here's a write-up about rivet-nuts. They're wonderful!

Here's what I started with:


After drilling the hole, you thread the rivet-nut onto the mandrel, insert it in the hole and then SQUEEZE!


And here's what you get on the backside!


Some thoughts--the Harbor Freight tool seems to work just fine.
I paid $29.?? for 100 10-24 rivet-nuts at Grainger (P/N 5RB29)
I should have gone a size smaller, like the (8-32)