It’s approximately 1” x 1.5” (2cm x 3cm). It came with…:
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a bag of macadamia nuts still in their shell. The shells were pre-cracked and the tapered point is used to slip in the crack and twisted to open the the shell the rest of the way
…but I don’t believe it was purpose built for that use and leaves the little hook with the bent tab unexplained and unused.
Lemmy - What is this thing?
Probably not very effective but because I don’t think it was purposely designed for that and I felt like saying that was kind of leading? I dunno. When you make me explain it it seems dumb 😂
It was hard to get a good photo, but you’re right; the little tab of the would be broken keyhole is intentional tapered like the main point on the tool is.
I thought maybe it was supposed to double as a bottle opener but could not figure out a way to use it as such. The main point is reasonably helpful at opening a soda can tab if that’s something you need help with.