Greatly improve the ability of debris removal. Innovative two S-shaped cross-sections, with progressively taper design, make it safer and more efficient simultaneously. Grinding Technology, M-Wire NITI Alloy by special heat treatment, builds a solid foundation for its flexibility. Specifications: - Size: #20. - Taper: 7%. - Material: NiTi. - Color: Yellow. **For further product information, please contact Chat Support**