A slot drill is a type of cutting tool used in machining to create slots or grooves in materials like metal and plastic. Unlike standard drills, slot drills have two cutting edges and are designed to cut on both the up and down strokes, making them effective for producing flat-bottomed slots. They are commonly used in milling machines and CNC machines. These tools come in various sizes and shapes, allowing for different slot widths and depths. Slot drills are often made from high-speed steel or carbide, providing durability and precision. They are essential in industries such as automotive and aerospace for creating intricate designs and components.