The Hertel Combo Drill & Countersink #4 combines drilling and countersinking operations in one efficient tool. Crafted from high-quality High Speed Steel with a bright polished finish, this versatile bit features a 5/16" body diameter and a precise 118° point angle for clean, accurate holes. With a 1/8" point diameter and 1/8" point length, it delivers consistent performance across various materials. The generous 6" overall length provides excellent reach for deeper applications. This combo drill bit streamlines your workflow by creating properly sized holes with countersinks for flush screw heads in a single operation. Ideal for woodworking, metalworking, and general fabrication projects where precision and efficiency are paramount. The Hertel Combo Drill & Countersink is an essential addition to any professional or serious DIY toolkit.