1. The distance between each tooth on the saw blade is the same. If one tooth falls off, the friction force on the tooth behind it will be twice the original, and the chance of this tooth becoming loose will be greatly increased. , if there are any more radical actions, it will be easy to be in danger. The sawtooth flying out is not just for fun, it will kill someone if it hits the femoral artery.
2. For example, if a double-headed saw blade develops burrs and edge explosion problems after being used for a period of time, it is likely that it has become dull and needs to be replaced and sharpened. Saw blades with better materials and workmanship are placed on the same equipment, but there is still a big difference in the duration of the cutting effect. Secondly, the lubrication method of the double-head saw must be ignored. The spindle accuracy of the own equipment will determine the use time of the double-head saw blade.