Over The other hand, When you are tumbling hard rocks, such as quartz or agate, you will need a finer grit size to obtain success. Basically hold adding new coarser grit, and because the media breaks down, it will create a "working blend" of varied sized particles. This permits for https://jaredbazyw.getblogs.net/61415288/what-does-6-inch-silicon-carbide-sanding-discs-mean