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Product Characteristics Product Type: Root canal instrument Material: Medical stainless steel Package:6pcs/Pack Application scope: Used for root canal treatment Use Precautions ※ Stainless steel material has high hardness characteristics and has very good cutting performance, but it is not very suitable for the preparation of curved root canals. ※ In case of a small root canal, a small stainless steel file with a higher hardness may be used to gradually expand, then complete the preparation with a nickel-titanium file. ※ Please replace the file in time when it reaches the limit.