LING'S SHOP 20mm Circular Saw Blades Power Rotary Tool Cutting Wheel Discs Mandrel Dremel Cutoff Made from strong carbon steel, durable and firm Ideal for cutting hard materials like wood, plastics, laminates and aluminium, etc... Suitable for use in carpentry and crafts Mandrel Length Approx: 37mm/1.46" Material: Carbon Steel, Quantity: 1 set (as picture show)