- Itena Fiber Post Drill Refill Red. - Diameter: 1.4 mm. - Cylindro-conical drills and Performance drills can be use with: steel and burn-out posts glass-fiber posts, titanium posts. - They are intended for shaping the canal to the dimensions of the cylindro-conical post. - Performance drills higher cutting capacity is owing to its straight blades, its sharp edges, its working tip and its high sharpness. **For further product information, please contact Chat Support**