Those aren't hard drives, they're solid state drives in the SATA form factor which was originally designed for hard drives. SSDs are much more compact than HDDs, so the components are usually all bunched up at one side near the connectors and the rest is just air, thus punching a hole in them at random probably won't achieve anything. Punching a hole through the PCB might not destroy the data either depending on where exactly you hit it but it would probably at least make it more difficult and expensive to recover.

Thank you for a clear and courteous answer to my silly question. (I am so used to not thinking about spinning hard disks that I didn't even notice that I'd used the term to refer to SSDs.)

It wasn't a dumb question, pictures could have been clearer.