All steel files are made of high hardness carbon steel, wear-resistant and durable
Suitable for grinding and polishing all kinds of metal and non-metal materials such as stainless steel, copper, iron, aluminum, plastics, etc.
High temperature quenching treatment on the surface, with high hardness and wear resistance
Ensure that the certificate is clean, wear-resistant, durable and not easy to deduct after the workpiece is frustrated
Quickly improve work efficiency; strict quality approval, hard and not easy to deform
