HMD Large Diameter Drilling U Drill System

Achieving strict tolerances in large diameter drilling requires a tool that balances rigidity with cutting efficiency. Our large-size U Drill holders are engineered with a hardened steel body and optimized flute geometry to handle the high torque and chip volume associated with big bore machining.

Whether you are drilling steel, stainless steel, or cast iron, this U Drill ensures consistent performance and reduced cycle times. It is the ideal solution for machinists looking to upgrade their large diameter drilling capabilities from spade drills or conventional twist drills to a modern, indexable solution.