I worked with it for 3 days cutting branches.
I never hit it with a hammer.
But I pushed almost cut branches with my hand to bend and break them.
Probably due to the strain from cutting the branches, the thread got worn out and now it doesn't tighten at all.
The thread and the bolt don't appear visibly worn out but they are slightly worn out according to the caliper. Because they already had some play, now it doesn't tighten at all.
Don't laugh. No matter how delicate it is, if something breaks you can just weld it and it will be even better. This specific bolt/nut, besides being trapezoidal, have a diameter and pitch that I can't find in the market. They are probably custom-made by Bulle.
3 days of AVERAGE work.
STAY AWAY.

I decided to buy a wrench because I had one that was very worn out. And finally, I received it and realized that it is a mini wrench, the photo does not show the size. It is half the size of the one I had, the only thing that was the same were the jaws, 150mm. I have a photo with both for comparison. Of course, the price of 35€ including shipping was good, but what I had cannot be compared to what I got, a mini wrench. Maybe besides the price, we should also consider the weight. The old one was close to 10kg and the new one is close to 5kg

Very stable and sturdy and does not play at all. Very smooth operation. I wiped off the oil it had and applied grease to the friction points and threads. The difference is unbelievable. The grease helps prevent wear and prolongs the good functioning of the metals that come into contact with each other. The wrench is worth the money it costs, however, we should not hit it with force, and we should not use all our strength when tightening. It is purely for amateur use.

I bought it for the second time for welding purposes.
It has 2 sturdy 10-inch blades glued on them, the jaws.
In a tight grip, they might loosen.
The seller gave me an idea which improved its stability.
It stuck together with 2 10-inch blades against the jaws and became more stable

Good for as long as the driver's threading holds up. In 2 years, mine came out shaved, resulting in the wrench becoming useless. Upon checking, I found that the metal it is made of is nothing but mediocre cast iron with a clear expiration date. So if you choose or already own it, be careful not to tighten the object to be held too much, as it will strip the threading in your hand. The ratchet did not have any issues, while the metal of the jaws is relatively soft and vulnerable. Definitely, you get what you pay for. This specific wrench is strictly for amateur use and with caution!

Very good, strong in tightening, sweet feeling. And at an excellent price. The 150mm is very convenient!
I haven't put it under strong hits with a hammer, although logically, due to the material, it should handle them just fine.
Very satisfied, I would buy it again as I haven't found anything similar for under 40+ euros.