Description: OOTDTY Features: Made of alloy steel forging, overall heat treatment, high hardness, strong cutting ability. The blade is finely ground to ensure an easy cut and a clean cut. The surface of the blade is black, not easy to rust. Ideal for copper or thin wall stainless steel pipes. This blade is an accessory for the mini pipe knife, which is the main accessory for it. Specification:Material: Alloy Steel Diameter: 1.8cm (0.71 inch) (Approx.) Color: Black Quantity: 1 pcNote:Transition: 1cm=10mm=0.39 inch No retail package. Please allow 1-3mm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package Included:1 x Cutting Blade (Other accessories shown in the picture are not included.)