How does diamond blade compare to stone blade for paving slabs?

I have a small angle grinder and used several disks and then burned it out trying to cut a 50mm concrete paving slab, using stone cutting disks.





Is a diamond blade better at cutting paving slabs?|||There are many types of diamond blade, of which stone blades are one. Some blades are designed to cut tiles - these have a continuous circular edge. Some are for concrete and stone - these have narrow notches around the edge, and some are for asphalt - these have wider notches around the edge. If you were using a proper stone blade to cut concrete then it would have burned out only because the diamonds had worn off ( this can happen without the blade looking visibly much different) or your grinder was too small. Most people would only cut 50mm paving slabs with a bigger 9" grinder or a petrol disc cutter which uses 12" blades. Those slabs are made out of strong concrete.|||Diamond blades are better because they stay the same size. Composite stone cutting discs wear away and the cut gets shallower.


If you are doing a lot of this work it's worth buying, borrowing or hiring a tool that can be used wet as it cuts quicker and stops the dust.|||Yes, the rough "stone" blades are designed to cut metal. To cut stone, you need a diamond blade.|||well diamond is indestructible and could easily cut through rocks so i suggest you should choose the diamond cutter.|||yes. the diamond blade will last much longer and cut faster and cleaner.