Description: 1. Material: diamond 2. Dimensions: the inner diameter of the saw blade is 3.2 mm, the outer diameter is 22-30 mm, and the connecting rod is 3 mm by default. For other requirements, please contact customer service. 3. Maximum line speed: 18 (rmp) 4. Maximum speed: 2000 rpm 5. Scope of application: suitable for processing such as jade, glass, hardwood carving, metal, jade. 6. Features: high hardness, wet and dry, wear-resistant, not easy to damage.