【EFFICIENT SHARPENER】This electric saw sharpener provides a quick and easy way to sharpen your knife. Press the tip of the sharpener onto a firm surface and you will get a sharp edge in seconds. 【CUSTOMIZED DESIGN】It is suitable for 14/16/18/20 inch chainsaws, the saw chain blade has 1-2 holes, and there are 2 pins on the saw sharpener (one of the pins is removable) for fixing the electric saw blade. 【GOOD SHRINKAGE PERFORMANCE】The bottom of the electric saw sharpener is made of high-quality stainless steel springs. If the electric saw is inserted into the sharpener, but the size of the electric saw is not large enough to touch the whetstone, please press the spring. The spring makes the sharpener suitable for more sizes of chainsaws. 【CONVENIENT AND FAST】The sharpener is lightweight, small in size, easy to carry and use outdoors, your hands do not have to touch the sharpening stone. 【HIGH QUALITY】The chainsaw sharpener is made of high-quality durable plastic and sharpening stones to ensure your safety and quickly restore the working performance of the chainsaw. It is a good helper to improve work efficiency.