Very Cool, never saw one of these before!![]()
^ there's plenty of those double-end units on Ebay! get out your wallet! sellers think they're made out of platinum! 
^ there's plenty of those double-end units on Ebay! get out your wallet! sellers think they're made out of platinum!
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German adjustable wrench
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They appear to be 1/32"are those leaves each one millimeter thick? or 1/6" ??
Here’s my TDP 200mm adjustable. It has the smoothest action I’ve even found in an adjustable wrench.
It has a two piece thumb wheel, I’ve no idea why or if that’s the reason the action is so precise.
That is an interesting looking wrench. What is the COO?
Maybe the 2 piece thumb wheel has a self locking mechanism to hold position?
An unnecessarily complex adjustable wrench.
Yeah, I went there. I was just in the mood.

Thanks. Provenance from elderly seller was that this had been used on a ship during WWII. It's a 'safety' wrench, which means it was plated with beryllium copper only to resist sparking, a less expensive alternative to spark 'proof' solid beryllium. Date code of 1944 tends to confirm WWII provenance, as well as other members' knowledge about similar wrenches on ships. It's not a catalogued item, so it must have been a custom contract ordered for the Navy. It's apparently quite uncommon.Copper plated Bet'r Grip! Very cool!![]()
Thanks. Provenance from elderly seller was that this had been used on a ship during WWII. It's a 'safety' wrench, which means it was plated with beryllium copper only to resist sparking, a less expensive alternative to spark 'proof' solid beryllium. Date code of 1944 tends to confirm WWII provenance, as well as other members' knowledge about similar wrenches on ships. It's not a catalogued item, so it must have been a custom contract ordered for the Navy. It's apparently quite uncommon.
IIRC, Ampco still makes them, but they are solid alloy, not just plated.That's probably one of the coolest back stories I've ever heard for an adjustable! I hope after it went home with him, no one made sparks anywhere they shouldn't have with the (guessing) steel replacement! A cursed adjustable wrench would be no good!! Lol
Edit: makes me wonder when the bronze and becu versions came into vogue? I have an Ampco 12" and no idea on age, not a lot out there on non-spark tools in general.
Just a heads up in case you're interested.
We've been talking a little about the "TOP Hyper Monkey Zero" adjustable wrenches over in the "Tools of Japan" thread. They use a spring-loaded split worm that pretty much eliminates play or drift. It's the same worm design as in the TOP wrench that gbh posted about earlier in this thread.
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A member who goes by the moniker outdated has also posted a video review that you might want to look at. (I hope it's okay to post a link here without asking his permission.)
These look fantastic, but what's the cheapest way to get one? I'm looking at the 32 or 38mm, only seeing them on Ebay though. The $50 pricetag is a little hard for me to swallow as a hobbyist, are they available anywhere cheaper?