What am I missing here? This socket has a 5/8 and 13/16 end (6 points on either end). Am I missing a piece?

[Doug Caridi]

 

[LXCam]

Leather conditioner??

 

[ecotec]

Is it a flip socket? Does an extension fit into the middle? If so, an extension is what you would need to use it.

If not, I have no idea.

Take a picture of the inside of it.

 

[crewchief888]

my guess is a spark plug flip socket

 

[bas157]

I call those flip-flop sockets that you need to use an extension with, for the corresponding drive size that is (probably) in the middle of the socket.

 

[KnurledNut]

Bonney used to make one similar to that with those sizes, #T2026. It was a sparkplug socket and had a rubber insert with a 1/2 female drive offset to each side. It was designed to use a separate drive plug, #T2026-1.
I always thought this was a great design.
@3baygarage posted about one here: https://www.garagejournal.com/forum/threads/spreading-the-bonney-affliction.273680/post-4892237
Many years ago I was actively searching for one on eBay to put in a OPE kit I needed for work. I finally gave up and moved on.
One similar here: https://www.ebay.com/itm/397859567412

The only thing I see missing in the original post is the ability to focus.

 

[rsanter]

Flip socket for lug nuts

 

[Cheep]

Flip socket for lug nuts

5/8 lug nuts?

 

[ecotec]

5/8 lug nuts?

I thought the same thing. I have never had anything with 5/8” lugnuts. I googled it, though, and they exist. Maybe they are for something smaller than cars (motorcycles, trailers…).

 

[alinc100]

I picked one of these up recently with the piece you are missing. It appears in theory that it allows you to use a wrench,3/8" ratchet, flipping sizes/flipping the insert. And my thought it is for spark plugs.

 

[KnurledNut]

I picked one of these up recently with the piece you are missing. It appears in theory that it allows you to use a wrench,3/8" ratchet, flipping sizes/flipping the insert. And my thought it is for spark plugs.

Does that have a rubber insert in the middle to hold the spark plug?

 

[alinc100]

Does that have a rubber insert in the middle to hold the spark plug?

yes it does