The Hertel Combo Drill & Countersink #4 combines precision drilling and countersinking in one efficient tool. Crafted from premium cobalt material with a bright polished finish, this versatile bit features a 5/16" body diameter and a 118° point angle for optimal performance across various materials. The 5/16" point diameter and 1/8" point length ensure clean, accurate holes, while the generous 6" overall length provides excellent reach for deeper applications. This combination design eliminates the need for tool changes, streamlining your workflow and saving valuable time. Ideal for professional workshops and serious DIY enthusiasts, this Hertel combo bit delivers the durability and precision needed for consistent, high-quality results in woodworking, metalworking, and general fabrication projects.