Engine Endo Files/dental files: 1) Package:6pcs/box 2) Super Flexibility 3) NITI or SS available Engine Endo Files :Working Part is made of NiTI or Stainless Steel .Tapper at 0.02 meeting the requirment of ISOType: Engine-UseModel :K File, H File, Reamer, Length:21mm,25mm,28mm,31mmPackaging: 6pcs/box( Assorted or single size) NiTi Engine Reamer/dental files