For example, what is the difference between 1:40 teeth and 60 teeth?

The 40-tooth one will save effort and sound less due to its low friction, but the 60-tooth will cut more smoothly. Generally, woodworkers use 40 teeth. The price is the same, haha. If you want a low sound, use a thicker one, but the thin one is better quality. The higher the number of teeth, the smoother the sawing profile, if your machine has good stability, the sound will be quieter 

Such as 2: What is the difference between a 30-tooth wood saw blade and a 40-tooth wood saw blade?

The main ones are: 1. The cutting speed is different. 2 The gloss is different. 3 The angle of the teeth of the saw blade itself is also different. 4 The requirements for the body hardness, flatness, and end jump of the saw blade are also different. In addition, there are some requirements for the speed of the machine and the feeding speed of the wood. 6 It also has a lot to do with the precision of the equipment for making saw blades. 7 'Cut the waist' is by far the hardest.

Another: Why do alloy saw blades need to open?

Prevent the saw blade from clipping;

Increase friction.

Such as 3: What is the difference between a multi-tooth and a few-tooth wood cutting saw blade?

Generally speaking, the more teeth there are, the more cutting edges can be cut in a unit time, and the better the cutting performance. , the chip capacity between the teeth becomes smaller, which is easy to cause the saw blade to heat up; in addition, there are too many saw teeth, and if the feed rate is not matched properly, the cutting amount of each tooth will be very small, which will aggravate the friction between the cutting edge and the workpiece and affect the service life of the cutting edge. . Usually the tooth spacing is 15-25mm, and a reasonable number of teeth should be selected according to the material to be sawed.

To sum up: the cut surface with less teeth is not as smooth as the cut surface with more teeth, the price of less teeth is cheaper than that of more teeth, and the saw blade with less teeth is less likely to burn the saw blade than that with more teeth. If it is plywood, you must use more teeth to reduce chipping.