If you’ve ever wanted to use the same tools and supplies as your favorite fabricator, here’s your chance. This light grey 400 grit disc is perfect for finishing off your titanium projects. They leave a nice fine finish on aluminum and steel as well. Disc is 12″ (300mm) diameter with a 7/8″ (22mm) mounting hole. Load up 4-5 discs on your bench grinder or buffing wheel for a beautiful surface finish in no time at all.