<human>: What is the difference between a rotary tool and a band saw?
<bot>: The main difference between a rotary tool and a band saw is that a rotary tool has an abrasive disk, usually made of diamonds, which rotates around a shaft while a band saw has a circular blade with teeth that moves back and forth in a straight line. A rotary tool can be used to cut or shape materials such as wood, metal, plastic, and stone, while a band saw can only be used for cutting through hard materials like steel, aluminum, and concrete.