I looked at theirs but ended up buying this one. It's been bulletproof so far.

Astro Pneumatic Tool 1442 13" Hand Rivet Nut Setter Kit - Metric & SAE W/ 60pc Rivnuts https://www.amazon.com/dp/B003TODXQW/ref=cm_sw_r_apan_glt_fabc_BNZRCSP9ZFS7X9VB60CJ?_encoding=UTF8&psc=1

As others have said, buy the rivnuts in bulk off of Amazon.