The Milwaukee Shockwave Impact Duty Driver Bit Set 48-32-4082 is a 100-piece set of impact driver bits designed for use with impact drivers and drills. The bits are made of steel for durability and are color-coded in red and silver. The set includes a pack out organizer for easy storage and access to the different sizes and types of bits. This high-quality set from Milwaukee is suitable for various bit driver applications and is a very valuable addition to any toolkit.