A 2 second Google search will answer your question
I’m here to learn what I don’t know. If you see questions which seems stupid to you, don’t feel you owe me a reply.
And the reason I didn’t think of googling is that OEM Tools site calls it “GoThru®“ which I didn’t realize is a common tool type. Went to the OEM Tools site earlier and looked up the socket set by SKU and it didn’t explain what it was.
But no matter, I thank you for your five seconds of typing a response.