5x Nut rivet mandrel: M3 / M4 / M5 / M6 / M8. Size: M3 / M4 / M5 / M6 / M8. 10x M8 threaded rivet nuts. -Easy to Operate, just drill a hole in the workpiece, assemble the appropriate rivet nut onto the tool, insert it into hole, squeeze and then complete.
