K-File 31mm 6/Pk #40

• 31mm extended working length
• Twisted stainless steel design
• Quantity: 6 files per pack
• ISO #40 tip size
• Color coded handle system

The Premier Dental K-File 31mm 6/Pk #40 is a stainless steel hand endodontic instrument designed for extended reach canal instrumentation and controlled apical enlargement during root canal therapy. Featuring a 31mm working length and ISO size #40 tip diameter, this file is specifically suited for long root anatomies and cases requiring deeper canal access beyond standard file lengths.

If you have ever wondered about what the Premier Dental K-File 31mm 6/Pk #40 is used for, it is the best Premier Dental K-File 31mm #40 option for precise manual shaping and effective canal preparation in long or difficult to access root systems. Manufactured from high quality stainless steel, this K-file incorporates a twisted square cross sectional design that promotes efficient dentin cutting while maintaining controlled flexibility within the canal. The extended 31mm length differentiates this version from 21mm and 25mm alternatives by providing improved reach in molars with long roots and in cases where working length extends significantly apically.

The #40 ISO size supports mid to late stage canal enlargement, helping create adequate shape for irrigation penetration and obturation material placement. The balanced rigidity of the stainless steel construction allows steady tactile feedback during instrumentation, supporting accurate apical control and minimizing deviation when used with proper technique. A color coded handle enables rapid size recognition, contributing to streamlined workflow during step back or crown down shaping techniques.

Designed for dependable manual instrumentation and consistent shaping performance, it is also the best stainless steel hand K-file for reliable #40 canal enlargement and controlled endodontic preparation in extended length canal cases.