So, I replaced our tankless water heater over the weekend. The heat exchanger froze solid and of course, burst, during our recent cold spell. I'm not really a plumber but you can't get one a hold of one for at least a month and showering/doing laundry at the neighbor's place was getting old so I just decided to dive in. It was actually a very straightforward job but in researching it online, ran across a YT channel by this guy who goes by "the Rinnai Guy". Lots of great tips on his channel and he showed this ratcheting crescent wrench I had never seen before, called the Joker. This was interesting to me because Wera is the old standby of hand tools for our European machinery techs. Anyhow, ordered one from Amazon and as the Rinnai Guy said, this thing is awesome! Difficult to describe exactly how a ratcheting mechanism works on an open-ended wrench, but it does. Very ergonomic and saved a ton of time:
https://products.wera.de/en/joker_60...joker_xxl.html
Erik