Easy to sharpen With the flexible wheels, you can easily maintain the sharpening angle Free adjustment The reach can be adjusted by the racing nut so that you can adapt to blades of different widths High quality and durability Rustproof and durable. How to use Fixed angle, easy to use - Rotate the locking screw counterclockwise, tighten the chisel or other tools, move up and down to adjust the angle, then pull the locking screw inward clockwise. Use a whetstone or pencil sharpener for smoothness. Slide the knife back and forth until your tool is more precise and sharper! Wide range of applications Suitable for sharpening scissors, planes, blades, knives, carving knives, planers and scissor blades, definitely a good helper for sharpening scissor blades ! Saves energy, but works well. Note: The data is all measured manually, please allow 1-3cm error, due to the difference in light and display, there will be a certain difference in color, the actual object received shall prevail.