5 Tips to Remember When Using an Angle Grinder on Stone ...
Pick the Right Tool for the Job. Angle grinders come with two basic wheel sizes: 115mm and 230mm. The first one is smaller and cannot cut as deep as the bigger tool, which you need to keep in mind when choosing which size of wheel to use. If you will be cutting large slabs of stone, opt for the 230mm but if you are cutting smaller bricks, opt for the 115mm size.