iM3 Control Cut K-Reamer (Ni-Ti) 60mm 0.20 (4 pack). Made from Nickel Titanium for increased strength and unique flexibility when working in curved root canals. ISO 0.20. Taper 0.02. 60mm overall length - 30mm working length. Sold in packs of 4. Used in a clockwise turning movement, K-Reamers have less turns on the active part than K-Files.Files and Reamers are intended to be single use and the cost factored in to each procedure.