Economical option If your 'old man' feels too tired, sharpen his chains with a chainsaw sharpener instead of throwing them away/replacing them. is a job that requires patience and you'll love your age even more when it's done. Chainsaw Chain Sharpening Kit Manual sharpener works like a sharpener. When sharpening a chainsaw chain using a sharpener, place the clip on the rod, place the locking pawl on the teeth, insert the reamer into the guide sleeve and turn the handle. It only takes 3-5 seconds to clean the shiny chain, is quick and easy. Great chainsaw accessory The chain grinder is made of aluminum alloy and stainless steel, which has strong resistance to corrosion. corrosion, pressure resistance and long life. Lightweight and portable chain sharpener measures just 10cm x 7.5cm x 6.5cm, chainsaw chain sharpener fits easily in your clothes pocket or a small outdoor bag. Very practical. Upgraded design chain sharpener is equipped with 2 sanding holes with 30 angle, the left is a fixed hole and the right elastic hole can be moved back and forth to adapt to different types of hole chains. Comes with 3 chainsaw files, perfect for loggers and gardeners who use chainsaw sharpening tools.