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Considering opening up a Leica M3 to get the slow shutter speeds working again and take a look at the not completely smooth film advance mechanism.
Anyone got experience with these chinese wrench tool thingies on eBay? (pic related) They're significantly cheaper than most other ones you can find online, but are they any good?
I'd rather use a proper tool than a regular wrench to avoid scratches, but I'd prefer not spend too much on something I'll probably only use once.