[Mercedes] Taps and dies for Benzes?

[Curley McLain]

I have a good metric tap and die set from snears in 1972.   I also have 
a couple HF type tie wan, or chi nah sets.  To chase threads, the chepo 
sets from HF or HD etc. are sufficient.   For cutting new threads, these 
will do for occasional, odd holes, but if you have a lot to do, a good 
set is the way to go. Hanson, or similar.  For mail order, grainger will 
have them, but high price.,

Craig via Mercedes wrote on 4/18/26 1:42 PM:
> In looking to chase the threads in my 300SD's thermostat housing, I
> realized I have a dearth of metric taps and dies.
>
> I know (now) the OM617's thermostat bolts are M6x1.0, as shown by my dial
> caliper and thread gauge (picture attached).
>
> What are the other sizes I need to get?
>
> Does anyone have any suggestions?
>
>
> Craig
>
>

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