The Milwaukee 48-20-3916 MX4 4-Cutter SDS MAX Rotary Hammer Drill Bit is a high-quality drill bit designed for use with SDS MAX rotary hammers. With its 4-cutter design, this drill bit provides efficient and precise drilling performance. Manufactured by the trusted brand Milwaukee, you can rely on the durability and reliability of this tool for all your drilling needs. Perfect for both professional and DIY projects, this drill bit is a versatile and essential tool for any workshop or job site.