Endo-Eze hand files are created using a state-of-art alloy treatment, giving them the flexibility to negotiate curvatures in the canal and the resistance required to advance until the apical third. Each file features an ergonomic handle to give better tactile feedback and to reduce hand fatigue. ISO standard colors, diameters, lengths, and tapers Stainless steel or nickel-titanium construction Ergonomic handlesStainless Steel K-Files Balanced flexibility and resistance 60º angle non-cutting tip for effortless file penetration Spiral design with four cutting edges (square cross section)NiTi K-Files Nickel-titanium thermal treated alloy Provides sharpness and cutting ability with added flexibility Ideal for enlargement of severely curved canals