So you remember stripping the old screws from paint and rust didn’t work with the nutshell grain delivered with the tumbler? thanks to Markus’ Ford Project blog i found the information on which abrasives i need to get thos damn parts clean again 🙂 I finally ordered a set of PL-M Delfir Chips, 1x1x1cm he recommanded at a local company which makes abrasives: Polyservice after a few days of waiting they finally arrived here, so i hope i can try this stuff soon: