Forney 20-Piece Mini Drill Bit Set includes 20 common numbered mini drill bits, ranging in sizes from 61 to 80. This set is designed for precision drilling in wood, plastic, and metal materials, making it a versatile addition to your toolkit. The drill bits can handle speeds up to 30,000 revolutions per minute, ensuring efficient and accurate drilling performance. All bits are neatly organized in a convenient steel index storage case, providing easy access and secure storage. This compact set is for detailed projects requiring small drill sizes. Model Number: 60239