High carbon steel
The countersink is five-bladed, allowing faster wood chip removal during use, drilling smooth and flat countersinks in one go, and embedding screw heads into the workpiece surface. Suitable for bench drills, electric drills, and other tools.
Titanium coating
3MM, 4MM, 5MM, 6MM, 7MM, 8MM, 10MM (diameter of the three-point wood drill), countersink diameter is 15.8MM.

