1968 Barracuda Notch - Plano, TX

Very nice!

What’s the nutsert tool? Haven’t seen one like that before.
bought it 10-12 years ago. I got a set that had "standard" thread size tooling.
see similar item sold under different brand names. Looks like all three are same manufacturer.

AOBEN Rivet Nut Tool Kit​

LIBRATON Rivet Nut Tool​

TOLRET Rivet Nut Tool​