Is a company that makes an Incredibly Easy Drill Set Guide Kit for Mercedes
Ignition Locksets.

I used to have to you tube Video of the kit being used.
['Vanished,Like the Aliens snatched it!]

Think of a Super hardened Metal tube that's I.D. Exactly matches the O.D.
of the Tumbler's faceplate outer edge.
'Slip the tube over the tumbler and insert a specialized "Hole Saw" drill bit
into the tube that cuts the Tumbler's faceplate just inboard of the tube's I.D.

Lockset tumbler was out in less than 60 seconds!

I've gotta imagine with all the trouble Diamler Benz got into with Interpol
over the "Eastern European" Bizsmen getting keys cut In the U.S. for
Italian,German and Swiss Mercedes...That would end up the next day in
Zagreb.

Mercedes (or Interpol) probably bought Sauber's compliance in removing the
Tool from Public availability.

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'84 300SD sold
124.128