Saw blade considerations
1. If the saw blade is not used immediately, it should be laid flat or suspended in the inner hole. The flat saw blade must not be piled with other objects or feet, and should be protected against moisture and corrosion.
2. When the saw blade is no longer sharp and the cutting surface is rough, it must be repaired in time. Grinding can not change the original angle and damage the balance.
3. The internal diameter of the saw blade must be corrected by the manufacturer. If the processing is poor, it will affect the use of the product, and may be dangerous, in principle, the hole can not exceed the original aperture of 20mm, so as not to affect the balance of the stress.