Endodontic files 21 mm, Size 70, Pack of 6, Nickel Titanium Straightforward endodontic shaping files in a Hedstromstyle spiral design. Each file is 21 mm long with a size 70 tip and comes in a pack of six. Constructed from nickel titanium for flexibility and resistance to cyclic fatigue, these files are intended for precise canal shaping and enlargement. Key benefits Precise shaping: Sharp spiraled flutes and a tapered profile deliver predictable, uniform canal shaping without adding extra instruments. Durable and flexible: Nickel titanium construction offers flexibility in curved canals while maintaining cutting ability over multiple uses when used according to standard protocols. Consistent sizing: Size 70 with 21 mm working length suits larger canal preparations and final enlargement steps before obturation. Efficient cutting: Spiraled, sharp edges reduce the need for excessive filing motions, helping streamline clinical workflow. Economical pack size: Six files per box provide a small clinical supply suitable for specific cases or procedure stages. Important attributes Function: Canal negotiation, enlargement, and final shaping during endodontic procedures. Compatibility: Works with standard endodontic handpiece systems and manual handling techniques; confirm instrument system compatibility before use. Size: 21 mm working length, ISO size 70 tip. Material: Nickel titanium for flexibility and fatigue resistance. Performance: Spiraled Hedstromstyle geometry with a tapered structure for uniform shaping along the canal length. Use scenarios Final enlargement prior to obturation when a larger apical diameter is required to accommodate obturation materials. Shaping larger straight or moderately curved canals where a size 70 taper is specified by the treatment plan. Retreatment cases to reestablish a consistent taper after initial debridement or to refine canal shape before irrigation and filling. Handling note Use with appropriate irrigation, torque and speed settings, and manufacturerrecommended protocols for nickel titanium instruments. Inspect files before use for damage and discard if distortion is detected. This product description reflects the specified model, size, material, and intended endodontic functions without additional claims.