EFFICIENT SHARPENERThis electric saw sharpener provides a quick and easy way to sharpen your knife. Press the tip of the sharpener onto a firm surface to achieve a sharp edge in seconds. CUSTOM DESIGNSuitable for 14/16/18/20 inch chainsaws, the saw chain blade has 1-2 holes, with 2 pins on the saw sharpener (one pin is removable) for securing the electric saw blade. GOOD SHARPENING PERFORMANCEThe bottom of the electric saw sharpener features high-quality stainless steel springs. If the electric saw does not fully contact the sharpening stone when inserted, press the spring. This design allows compatibility with a wider range of chainsaw sizes. CONVENIENT AND QUICKThe sharpener is lightweight and compact, making it easy to carry and use outdoors. Your hands remain safe as they do not need to touch the sharpening stone. HIGH QUALITYConstructed from durable high-quality plastic and sharpening stones, this chainsaw sharpener ensures safety and quickly restores the working performance of your chainsaw. It is an efficient tool to enhance productivity. Number of pieces delivered: 4 Size: Refer to image for details Note: Data is based on manual measurement; please allow a 1-3 cm error. Due to differences in lighting and screen settings, slight color variations may occur. The actual product takes precedence over images.