Fine and precision modular boring tools: MHD’ System by D’Andrea
03 October 2022
Since 1951, D’Andrea has been a benchmark in the world of high-precision mechanical engineering. Among its most advanced solutions, the MHD’ fine and precision modular boring system stands out as a cornerstone of performance machining and tool holders.
A Modular System designed for Flexibility and Accuracy
The MHD’ system is engineered to meet the evolving demands of modern machining, offering exceptional versatility and reliability.
Its modular architecture allows for a wide range of configurations, making it suitable for various machine tools and applications.
- Boring diameters: adaptable from small to large-scale operations
- Interchangeable components: micro boring heads and roughing heads, extensions, adapters and tool holders
- Machine compatibility: horizontal and vertical boring machines, machining centers
This modularity not only simplifies tool management but also reduces inventory costs, as operators can build custom setups using standardized components.

Cylindrical-Conical coupling: a technical Advantage
What truly sets the MHD’ system apart is its cylindrical-conical coupling, a unique feature that delivers:
- Superior rigidity and vibration resistance
- High centering precision
- Easy assembly and disassembly
- Enhanced performance compared to traditional cylindrical-flat couplings
This coupling system ensures consistent results even in the most demanding fine machining operations, where precision is non-negotiable.
It minimizes tool deflection and improves surface finish, especially in deep-hole boring and tight-tolerance applications.
From rough boring heads to finishing boring tools: complete and precision products

Whether you’re performing rough machining or finishing operations, the MHD’ system adapts seamlessly to your workflow.
Its modularity allows operators to switch between rough and fine boring setups with minimal downtime, optimizing productivity without compromising accuracy.
Thanks to its robust design and precision-focused engineering, MHD’ is ideal for industries where tolerances are tight and reliability is critical—such as aerospace, automotive, and energy.
The system’s proven performance in demanding sectors underscores D’Andrea’s commitment to innovation, quality, and customer-focused solutions.