Step Drill Bits for Plastic are designed to drill various plastics with minimal cracking or melting, maintaining smooth edges and accurate hole diameters. The high-speed steel or coated construction ensures durability and consistent performance. Step geometry allows drilling multiple diameters with a single tool, while the tapered shank ensures stable mounting in drill presses, lathes, or hand drills. Spiral flutes improve chip removal and heat management, making these drills ideal for fabrication shops, prototyping labs, and educational workshops.