Milwaukee's 48-89-2218 21/64" Thunderbolt Titanium Twist Drill Bit is a high-quality accessory for your power tools. Made of durable titanium, this drill bit is designed for precision and long-lasting use. Its 8.3mm size is perfect for drilling into a variety of materials like metal, wood, and plastic, making it a versatile addition to your tool collection. Whether you're a professional or a DIY enthusiast, this Milwaukee drill bit is an essential tool for your workshop.