How to correctly choose the teeth number of saw blade

How to correctly choose the teeth number of saw blade?

When choosing the specifications of saw blade, no matter it’s used for cutting wooden material, aluminum, steel or acrylic, the number of teeth is very important. If the teeth is too less, the cutting is unstable and the cutting surface is poor; But if there are too many teeth with the the saw blade, cutting resistance and heat occurred quickly, which will cause the blade swing instability and short cutting life.

As a rule of the thumb, in case of a saw blade, there should be not more or less than 2-4 teeth at the same time in the material. We can calculate the teeth number needed with the following formula.

K=(1.45h×Z) / (D×π ) K=Number of teeth in cut H=Thickness of the material Z=number of teeth D=Outer diameter of saw blade  π=Pi (3.1415926)