Milwaukee 3-PC Cobalt Step Drill Bits are designed to handle materials up to 14 gauge with ease. These drill bits feature an elongated dual-flute design that helps manage heat effectively, ensuring durability and consistent performance. The Rapid Strike™ tips enable fast starts, especially in stainless steel applications, while the smaller steps provide smooth and precise drilling. Equipped with 3-Flat Secure Grip™ shanks, these bits reduce slippage in the chuck for better control and accuracy. Additionally, laser-engraved reference marks make it easy to identify the correct step during use. This set includes three Milwaukee® Cobalt Step Drill Bits: (1/8"-1/2"), #4 (3/16"-7/8"), and #9 (7/8"-1-1/8"). Model Number: 48-89-9291