I do this and throw away the HDD.If you were to go by silicon valley, drill through it
Today killed by 3TB Sata HDD, unused for past 1+ years, when connected today, it was making loud noise and HDD sentinel showed health 25%. It had lots of official data to kill it completely.I do this and throw away the HDD.
Thanks that might come handy and seems very easy.If you really have some time to spare you can try this and also he shows how to remove the round part from the drive.