The Hertel Combo Drill & Countersink combines precision drilling and countersinking in one efficient tool. This solid carbide tool features a 5/16" body diameter with a 118° angle and durable TiN finish for extended tool life and improved performance. The 1/8" drill point diameter with 1/8" point length ensures clean, accurate holes while the right-hand cut provides smooth operation. With a 4" overall length and double-ended design, this versatile #4 combo tool offers excellent versatility for various applications. The plain edge and solid carbide construction deliver superior strength and wear resistance, making this combination drill and countersink ideal for professional woodworking, metalworking, and precision manufacturing tasks where efficiency and accuracy are paramount.