## Introduction
A 3.5mm cortical screw may look simple, but it is one of the most difficult parts to manufacture in the world. With tolerances measured in microns and complex thread geometries, the **Art of Precision CNC Machining** is what separates a world-class implant from a generic imitation.
## Swiss-Turn Technology: The Industry Standard
Ortholyx utilizes **Swiss-style CNC Lathes** for screw production.
* **Stability:** Unlike standard lathes, Swiss-turn machines support the material right next to the cutting tool, allowing for the creation of long, thin screws with zero vibration.
* **Complex Threads:** These machines can cut the self-tapping “cutting flutes” and the dual-lead threads simultaneously, ensuring perfect synchronization.
## Critical Machining Requirements
1. **Thread Pitch Precision:** Even a 0.05mm error in the pitch will cause the screw to bind or strip the bone threads.
2. **Surface Roughness (Ra):** The screw must be incredibly smooth (Ra < 0.4渭m) to prevent bacterial attachment and ensure smooth insertion torque.
3. **Burr Removal:** Micro-fragments of metal (burrs) left on the thread can fall off into the patient. We use automated deburring and ultrasonic cleaning to ensure a pristine finish.
## Ortholyx Manufacturing Standards
Every Ortholyx screw is inspected under high-magnification vision systems. We reject any part with even the slightest deviation from the CAD design, ensuring that our screws provide the most predictable "grip" in the industry.
## Conclusion
Precision is the soul of orthopedics. By investing in the latest Swiss-turn CNC technology, Ortholyx transforms medical-grade titanium into a high-performance surgical tool.