If you are looking for a suitable circular saw blade, there are a few basic rules to follow. First of all you need to know the right size of saw blade for your circular saw. The measurements you need are:
The outer diameter of the circular saw blade
The diameter of the hole in the middle
When you have these two values, the next step is to determine the cutting width and quality of cut. Depending on the wood or material you want to cut, saw blades of different widths with different numbers of teeth are suitable. You will find these two values, in addition to the outer diameter and the diameter of the hole, in the article description of the saw blade.
Example: Circular saw blade HM 125 x 2.4/1.6 x 20 mm, Z=24
Diameter: 125 mm
Cutting width: 2.4 mm
Blade thickness: 1.6 mm
Bore diameter: 20 mm
Number of teeth: 24