Hi,
I had to change a Shimano 11 speed MTB cassette. I bought some BBB tools : a BTL 11S a BTL 12S and a BTL05. I broke two of them.
I'm really neither patient nor gifted, but I had to go back to the bike mechanic with the wheel. He replaced the cassette in less than 10 minutes. Perhaps the WD40 applied for 24 hours helped ?

Next time, I plan to buy more robust tools. Which brands are really foolproof ?
Park Tools
Crank Brothers
Pedro's
Unior
Any other brand ?
I'm living in France. The nearest bike shop is at an hour by car from my place.
Since it's mostly for home use, the weight and dimensions are not really important. My touring bike have a Rohloff/Gates transmission and Magura hydraulic rim brakes.
Thanks for your advices.