Efficient Knife SharpenerThis electric saw sharpener provides a quick and easy way to sharpen your knives. Press the sharpener tip onto a solid surface and get a razor sharp edge in seconds. Custom DesignFits 14/16/18/20 inch chainsaws, the blade of the chainsaw has 1-2 holes, and there are 2 pins on the saw sharpener (one pin is detachable) to fix the chainsaw blade. Good shrinking performance The bottom of the electric saw sharpener is made of high quality stainless steel spring. If the chainsaw is inserted into the sharpener, but the chainsaw is not tall enough to reach the sharpening stone, press the spring. The spring makes the sharpener suitable for multiple sizes of chainsaws. Convenient and quickThe sharpener is lightweight and small in size, easy to carry and use outdoors, your hands are safe. 't have to touch the sharpening stone. High QualityThe chainsaw sharpener is made of high quality durable plastic and sharpening stones to ensure your safety and quickly restore working performance of the chainsaw. It is a good helper to improve work efficiency.