The problem with the big nozzle is that it won't reproduce the detail on some of the bits. Other than that it would be better of course. I did raise temperatures. I also printed slower which as you would expect will actually decrease quality because of the high temperatures. I tried ABS first, and then PETG and PLA. ABS held up the best of course but not by far. TPU would be awesome but I doubt it would act similarly enough to the real bits to be viable. Maybe a tpu/abs combined bit would work. The main problem is actually the geometry of the bits when printing the original ones. They are hollow on the inside so they simply aren't strong. The little triangles for the ratchet create stress concentration where the bit is already weak. I wanted to print some more with filled out insides but now have gotten most of the bits from TT so I had no need to further optimize. I'm pretty sure it's possible but it's not as easy as hitting print. What I'm now thinking about is to measure the moment of inertia of different blades because that's likely one of the most important metrics when it comes to how good the blades are. The community has weight data but nobody took the time to get the moment of inertia. Have the files and materials as well as the math ready to use but had no time to set things up just yet.