<human>: What is the difference between a jig saw and a rotary tool?
<bot>: The main difference between a jig saw and a rotary tool is that a jig saw has a fixed blade while a rotary tool has interchangeable blades. A jig saw can be used to cut straight lines, curves, and shapes in wood or other materials. A rotary tool is designed to perform more specialized tasks such as cutting metal, plastic, and stone.