WHAT IS HERE LOS???! Or: How do I break impact wrench nuts on the Legacy rear axle…

Hello together, yes the chrome vanadium steel. After my turbo saddles are now beamed and varnished (VA) and only a few spare parts are missing, I thought, come, let the rear axles disassemble from the Legacy Turbo. Just for straightening and so on. I don’t think anything bosses. Impact wrench taken 19er nut and give it. Well -taktakak – nix geht. Is everything lazy. OK, rust releaser. Dump and coffee meanwhile. Again – 10 seconds long – a blow – shatters me the Proxxon nut. No matter, shit on it, get away with it, want anyway more noble. Well, and now comes: Here comes the Gedore nut for impact wrench unpacked. Full solder on the screw ridden – Bam – crack – NUSS broken, not the assi screw. And the end of the song? I grinches right, the sow. picture in the attachment. What am I shocked about holding the handbrake?