The DR line of hole making tools is designed to provide an economical solution, suitable for all types of materials ISO P K N M.

These tools are designed primarily for semi-finishing operations and exhibit a high level of accuracy, even when subjected to interrupted cut machining conditions, or while drilling stacks or sloped surfaces.
Furthermore, with the right edge geometry these tools can easily perform angular penetration holemaking operation, drilling into the material and exiting with flat burr-free exit.

These tools are known to be less susceptible to unstable machining conditions, making them ideal for unbalanced holemaking operations associated with vibration.