1. Material: high carbon steel 2. Hardness: high temperature quenching treatment 3. Processing objects: wood, plastics and other non-metals 4. Scope of application: woodworking polishing 5. It is suitable for non-metallic and non-hard materials, and can be used for tea trays, root carvings, wood rapid removal of materials and shaping 6. Forging of high carbon steel, strong hardness and durability 7. Dimensions: the outer diameter of the arc model is about 100mm, the outer diameter of the flat/inclined model is about 98mm, and the inner diameter is about 16mm 8. Weight: about 145 grams for curved models, about 251 grams for flat models, and about 287 grams for inclined models