Specification Brand : Kerr BulletPoint1 : Positive rake angle provides the active cutting action of the K3 endo files BulletPoint2 : The K3 rotary file's wide radial land provides blade support while adding peripheral strength to resist torsional and rotary stresses BulletPoint3 : The third radial land on K3 files stabilizes and keeps the instrument centered in the canal and minimizes over engagement BulletPoint4 : Radial land relief reduces friction on the canal wall FdaDeviceClassification : ii FdaIndicationOfUse : rx FdaInstructionsForUseType : professional FdaLabelType : rx_only ItemName : Kerr 825-4021 K3 Nickel-Titanium Rotary Endodontic File, 15-40 Assorted Size, 0.04 Taper, 21 mm Length, Assorted Color Tip (Pack of 6) ItemPackageDimensions_Height : 10 inches ItemPackageDimensions_Length : 10 inches ItemPackageDimensions_Width : 10 inches ItemPackageQuantity : 1 ItemTypeKeyword : professional-dental-endodontic-rotary-files Manufacturer : BISS Dummy Vendor Code for ASIN Creation Material : Nickel Titanium ModelNumber : 825-4021 NumberOfItems : 6 PartNumber : 825-4021 ProductExpirationType : Does Not Expire ProductSiteLaunchDate : 2017-08-18T08:00:01.000Z Size : 40 StreetDate : 2017-08-18T00:00:01Z UnitCount : 6 UnspscCode : 42152900