Review on SEDY Thread Repair Helicoil Metric by Reginald Sealy

The package/box I received contains 2 packs of M6 bobbins but no M5 bobbins - I compared bobbins in 2 packs and they were the same, it were all M6 coils. Because I repaired an M5 thread, I cannot complete the repair. I had already used the drill and tapping before realizing that the supposed M5 spools are actually M6 spools. I'm embarrassed to return the whole package but I may have to!