Based on this product's specifications, here are some alternatives and similar models
Threaded mandrel M6 for GESIPA FireFox blind rivet nut tool — M6 replacement mandrel
Summary description:
Threaded mandrel M6 compatible with the GESIPA FireFox blind rivet nut tool. Designed for installing M6 blind rivet nuts, this replacement mandrel ensures correct engagement with M6 rivet nuts and smooth operation of the FireFox tool. Intended for maintenance or spare-parts use to restore fastening performance and prolong tool life.