Slice Diameter: 22mm/0.87"Mandrel diameter: 3mm/0.12" Material: Carbon Steel Features: 1. 100% brand new and high quality.2. Made from strong carbon steel， durable and firm.3. Ideal for cutting hard materials like wood， plastics， laminates and aluminium， etc.4. Suitable for use in carpentry and crafts.Package included10 circular saw blades and 2 mandrel