Feature:1. SIZE SPECIFICATION: The kit contains 10 pcs tubing cutter replacement wheels, with inner diameter of 5mm and outer diameter of 18mm.2. ULTRA THIN: The tube cutter replacement wheel has only 3.8mm thin, making the cutting work smoother and more efficient.3. STEEL MADE: These replacement cutter wheels are made from manganese steel, with high hardness and strength, not easy to break or deform.4. ABRASION RESISTANT: The pipe cutter blades are hard to wear, ensuring long service life and stable performance.5. WIDE USAGE: These tubing cutter blades are suitable for cutting copper, brass, aluminum, thin walled steel, plastic tubes, etc.Specification:Item Type: Pipe Cutter WheelMaterial: Manganese SteelBlade Outer Diameter: Approx. 18mm/0.7inBlade Width: Approx. 3.8mm/0.1inBlade Inner Diameter: Approx. 5mm/0.2inApplication: Replacement wheel for pipe cutting machine.Package List:10 x Pipe Cutter Wheel