This rotary file set is made of material, which can withstand durable use. Features the material, which has high durability, not easy to deform. Fine workmanship, ensures practicality. This rotary file set will make the cleaning and polishing easier and smoother. Features -Color:Golden -Material: -Size:4.50X0.40X0.40cm/1.77X0.16X0.16in - The product has good processing quality and high smoothness, and suitable for different sizes and models of saw chain, strong versatility. - Simple and convenient to use, safe and reliable, can reduce labor strength and improve working environment. - Design in line with ergonomic principles, feel comfortable, more efficient operation. - Suitable for chamfering, rounding and groove processing of various mechanical parts, cleaning , and finishing the inner hole surface of mechanical parts, such as machinery factories, repair shops, etc. - Excellent craft, carefully down to every detail to give it look. Package list: 12 x Grinding Wheel Heads