The segmented & turbo diamond saw blades are very popular for use on smaller grinders and can be used dry or wet. If you want to add another full size dock door in a cinder block building this small tool is the preferred choice of many. Bricks, pavers, blocks, stone etc these diamond wheels can cut it with a powerful enough grinder. The Continuous blades are more common for tile, granite & marble use in wet saw applications (although good wet or dry). These blades make a much smoother precision finish cut. Here is a Quick Chart to help you determine which size & style of blade is right for you and here is the Diamond Blade Bible that will tell you everything you ever wanted to know about construction, usage, identifying problems and everything else diamond related. Check out Joe the Pro explaining the Bosch Diamond Blades in the video below.