Good quality blades: The blades are made of high quality steel; High-speed hardened, sharpened. The blades are flexible, therefore powerful and resistant to damage. wear. The blades move easily. The lifespan of these blades is 80% longer than that of the original blades. that of normal blades. "Metal Hand Deburring Tool: Small deburring tool, convenient for The deburrer fits comfortably in the hand and requires little force when using it. It is quite light but sturdy enough. It is flexible and easy to deburr. Usage: The blade rotates very smoothly and the changing mechanism is comfortable. Replacement blades can be inserted into the deburring tool itself, making it very convenient to use. Multifunctional Hand Deburring Tool: Designed for use in everything from DIY projects to professional industrial applications. Works on metal, 3D printers, plastic, PVC and many other surfaces. Contents: 1 x Hand Deburrer + 10 x Replacement Blades - Blade Dimensions: 47mm x 3.2mm (Total Length x