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I think an impact hammer was what @jay745 suggested to avoid that. And I didn’t mean to scare you off PB blaster, it’ll still help, just be aware of where it’s going!
Have an m12 impact driver I could tryYeah get one of these for those set screws
https://www.gearwrench.com/products...d-wheel/1140d-6-pc-38-drive-impact-driver-set