K-File 21mm 6/Pk #15-40

• 21mm working length design
• Stainless steel twisted construction
• Color coded ISO identification
• Quantity: 6 files per pack
• #15-40 size range assortment

The Premier Dental K-File 21mm 6/Pk #15-40 is a stainless steel hand endodontic instrument set designed for precise canal negotiation, cleaning, and shaping during root canal therapy. Featuring a 21mm working length and an assorted range of ISO sizes #15 through #40, this file pack supports sequential instrumentation and controlled canal enlargement in both anterior and posterior teeth.

If you are thinking about what the Premier Dental K-File 21mm 6/Pk #15-40 is used for, it is the best Premier Dental K-File 21mm assortment for establishing glide paths and performing manual canal preparation with dependable tactile feedback in everyday endodontic procedures. Manufactured from high quality stainless steel, these K-files are engineered with a twisted square cross sectional design that enhances cutting efficiency while maintaining flexibility for canal curvature management. The 21mm length provides improved access and maneuverability in patients with limited opening or when working in posterior regions requiring controlled instrumentation depth.

The #15-40 size progression allows clinicians to gradually enlarge the canal while maintaining apical control and minimizing procedural errors. Color coded handles support quick size identification, streamlining workflow during step back or crown down techniques. Designed for use in canal scouting, working length determination, and debris removal, these files contribute to effective irrigation penetration and improved canal cleanliness prior to obturation.

Packaged in a 6 file configuration, this assortment delivers practical size coverage within a single pack. With reliable cutting performance, standardized ISO sizing, and balanced flexibility, it is also the best stainless steel hand K-file set for controlled manual endodontic shaping and predictable canal preparation outcomes in modern dental practice.