The teeth are usually set to alternate sides so that the kerf (groove) cut by the saw is wider than the thickness of the saw; the saw Blade can thus move freely in the groove without Binding.

• 其锯齿通常根据切割的边缘而调整,使锯缝宽于锯的厚度,这样锯片就可以自由地在锯缝穿行而不会被夹