Forget Zirconia. The best product by miles for grinding, weld removal and shaping aluminium and other non-ferrous metals are the new Cibo Ceramic discs. Fast cut rate, cool cutting and long life. FX sanding discs are a high performance ceramic abrasive with a complex grinding aid coating which prevents the disc from clogging up when grinding aluminium and other non-ferrous metals. In 115mm and 125mm diameter we have included a 60 grit and an 80 grit option but we have assumed if you are using a 7" (178mm diameter) grinder then more aggression is needed and a 60 grit disc will be the ideal choice. We strongly recommend you also use the FIH back up pad with these discs as not only do they increase control they also improve the lifetime of the discs and reduce the heat generated during the grinding process. And for even longer life and faster cut us with the Alu Grind spray.
