Diamond blades are sensitive. I don’t mean their feelings get hurt easily, what I do mean is that there are multiple issues that can cause a diamond blade to not cut properly and slow the cutting process. A diamond blades speed is extremely important to get your job completed in a timely manner. 

Slow cutting usually occurs when the material being cut is too hard for the segments on the core of the diamond blade. When you use the appropriate blade for the appropriate application, the diamonds on the segment wear away and expose new diamonds, thus keeping the blade sharp and cutting speed optimal. What you can do is cut a soft material  like asphalt, with the blade that is cutting slow. This will wear away the current layer of diamond and expose the next layer, thus “sharpening’ your diamond blade.

It is very dangerous to keep cutting in the slow cut condition, this can lead to segment loss and core cracks. Diamond blade safety is obviously important to avoid injury, but also, using the proper diamond blade for the material being cut will extend blade life and save your company money.