Our hand held chainsaw sharpening kit is specially designed for sharpening electric chainsaws, it provides an easy and quick way to sharpen the saw chain, it only takes 3-5 seconds to make your chainsaw as sharp only new. Say goodbye to dull chainsaws. This saw chain sharpener is a manual saw chain sharpener (no power required to operate), just like a pencil sharpener, you just need to hold the position as needed and rotate the handle every time it's time to sharpen your saw chain. This chainsaw sharpener is designed with 2 30 degree holes and a retaining rivet. Suitable for different kinds of chains with different holes. Such as 14"/16"/18"/20" 1/4"/3/8" chainsaws. There are also 3 replacement grinding heads, don't worry there won't be enough. Every time you sharpen your chainsaw, you just need to pull the chain. Precision sharpening ensures every chainsaw is serviced! Precise positioning: The ratchet acts as a stopper, ensuring precise and repeatable positioning of the chainsaw. The chainsaw chain sharpener is made of aluminum alloy and stainless steel, which is durable, compact and portable. 2 in 1 Design --- Completely combines portability and practicality.