What size is it? Might be a "crow's foot" to remove injectors or injector lines.

Don't know why you'd need an O2 socket for an OM617.

If you don't want it, send it to me. I'm sure I could lose it in, err I mean, add it to my tool box drawer which contains my, "I bought this for a reason and some day I'll remember what for" collection.

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“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.”
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