Made of alloy steel forging with overall heat treatment, this bearing cutting blade offers high hardness and strong cutting ability. The blade center features a ball bearing for smooth and flexible operation. Black oxide coating on the blade surface provides rust resistance. Suitable for cutting copper and thin-wall stainless steel pipes. Designed as a replacement accessory for bearing pipe cutters. Diameter: 3.3cm (1.30in). Quantity: 2 pcs. Application: 4-32mm / 5-50mm tube cutter. Blade size: 30x10mm. Thickness: 10mm. Inner hole diameter: 6mm. Hardness: HRC65. Type: Bearing cutting blade. Shape: Standard. Foldable: No. Material: Alloy steel. Color: Black. Packaging: Blister pack. Package includes: 2 x Tube cutter blades. Note: Light and display differences may cause slight color variation between image and actual item. Measurement tolerance: +/- 1-3cm.