【HIGH-QUALITY MATERIAL】- The files are made of premium material T12 carbon steel and the body hardness up to 62～66HRC. The teeth were deeply quenched and coated for durable filing performance
【APPLICABLE SCOPE】- File, de-burr and shape Metal, Wood, Jewelry, Plastics, Ceramics, Glass and more
【CARE INSTRUCTION】- A light touch of machine oil is used to preserve their surface finish.
【Waring】- Because of The teeth were deeply quenched and coated, the file cannot accept being dropped
