Set of Step Drill Bits Granite

Here's some information about step drill bits: Multi-size drilling: Each bit has a conical shape with multiple steps, allowing you to drill various hole diameters without needing to change bits. Ideal for thin materials: They are commonly used for drilling in materials up to 1/4 inch thick, such as sheet metal, wood, and acrylic. Reduced chatter: The gradual increase in diameter helps to reduce chatter during drilling, leading to smoother and more consistent holes.