One of a bunch of Mercedes tools that I bought. It has KMC stamped inside a square diamond shaped box. Has a part number that looks like a Mercedes part number 711 589 01 01 00. Set up for ½ inch drive with the wrench end being 14mm.
Please help me identify this tool. Car model, engine and the what the tool would be used for. I believe it is a tool for a gas engine not diesel.

It appears to be some type of torture device.

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"It's normal for these things to empty your wallet and break your heart in the process."
2012 SLK 350
1987 420 SEL

Interesting imagination. Remember read the instructions and wear all needed safety devices; keep out of the hands of children and for external use only.

Everytime I see one of Gurkha's inane posts, that question runs through my mind.

That's a crowfoot wrench used to adjust valves on older gas engines.

Sticks and stones may break my bones,
but whips and chains excite me.

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1984 300TD