I don't think I've ever seen these before
You've...never seen an iFixit teardown before? Much like discovering the alt-text of XKCD years after you started reading it, you've got some back catalog to catch up on.
And if you ever get the DIY itch, they'll sell you every tool they use. Decent quality kit, too.
(EDIT: and to those of today's 10,000 with regards to XKCD, I am so, so sorry. Enjoy the rest of your non-productive day!)