When a diamond blade is dull, it will start to show signs of wear and tear. The blade will start to vibrate more than usual, and the cutting speed will slow down. The blade will also start to produce a lot of dust and debris, and the cut will become more jagged and uneven. Additionally, the blade will start to make a grinding sound as it cuts, and the blade will start to heat up more than usual. If you notice any of these signs, it is time to replace the blade. It is important to replace the blade before it becomes too dull, as a dull blade can cause damage to the material you are cutting and can even cause injury.
