Excellent Material: The saw chain sharpener is made of high-quality plastic, which is sturdy and durable. Chainsaw sharpening tools are installed in the sharpener to keep the chain and guide rods lubricated, reducing friction and increasing service life. Easy to Use: Open the sharpener, install the chainsaw on the two holes, and close the sharpener. When sharpening the knife, gently push the end of the guide bar until the saw touches the whetstone. Fast Sharpening: The chainsaw sharpener provides you with a simple, fast, and effective way to sharpen your knives. It quickly sharpens dull chainsaws, saving time and increasing productivity. 6 Sharpening Stones: The chainsaw sharpener comes with 6 replaceable whetstones. This chainsaw sharpener is suitable for sharpening shank and saw blades to achieve optimal cutting performance