K-Files are used to enlarge canal after debridement with a reamer. After reamer, use a file one size smaller than the reamer so that the fragments of dentinal shavings can be carried away from the root-canal walls. Use in clockwise direction (1/4 turn only), then withdraw.
Both Plastic handle and stainless steel blade may be sterilized to 390 F by any method.
Flat end of handle maybe accurately used as radiographic landmark.
For cleaning and shaping the canal walls.