Grinding wheel 350 x 50
Choose right coarse of wheel for nearest relevant value for yours surface. Important information is every next step forward in grinding and polishing. If you are not sure about it, you can use simple rule. Every grinding and polishing phase is prepairing for next level of surface upgrading. If you need to take mirror shining efect you need to take more levels of grinding and polishing to remove diferent deep of scratches. This is important before chrome layer.