NIUNIU Grinding Your Dull Chainsaw The hand chain saw chain grinding jig is made of high-quality alloy material, which is wear-resistant and durable. It is designed to sharpen your chainsaw in a fast, easy and precise way. Quick sharpening When you start a project, you don't need to bother about stopping to fix anything. The chain serration sharpener can clean dull chains again in 3-5 seconds. Save time and effort by using the sharpening tool to keep your chainsaw sharp as new. Easy to Carry This is a decent compact sharpener, perfect for when you don't have room for a bigger sharpener or an election sharpener. Because this knife sharpener only weighs 2 pounds, and it's small enough to take anywhere. Compatible with Most Chainsaws This sharpener not only works with all kinds of chainsaws and chainsaws to keep your chainsaw in top condition, but it has an elegant design. Easy to use Find dull teeth, turn the handle to start sharpening, precise sharpening ensures every tooth is restored