1. 5Piece Set for Versatile Applications This innovative swagging tool drill bit set includes 5 different sizes to ensure you have the right solution for a wide range of tasks. It is designed to streamline your workflow, especially when working on air conditioning systems. Whether dealing with various pipe sizes or specific project requirements, this set effortlessly meets your needs. 2. Designed for Air Conditioning Installation The practical utility of this pipe swagging tool set is unmatched for air conditioning installation. Expertly crafted to expand copper pipes and connect them seamlessly, it optimizes the installation process and ensures a fit. This essential tool set enhances the efficiency and effectiveness of air conditioning systems. 3. Universal Hex Shank Compatibility Each swagging tool drill bit features a standard 1/4inch hex shank, compatible with most hand and electric drills. The hex design not only ensures a secure fit but also maximizes efficiency during use. This allows you to safely use the tool with various devices. 4. Forged from Chromium Molybdenum Steel These durable swagging tool bits are made from strength chromium molybdenum steel, offering wear resistance. The material selection ensures longlasting performance, preventing rust and other wearrelated issues over extended use.