General description Manual chainsaw chain sharpener designed for quick and efficient sharpening of electric chainsaws. This crank-operated sharpener allows you to sharpen your chainsaw chain in just 3-5 seconds, restoring it to a like-new condition and eliminating passivation. Technical specifications Material: Aluminum alloy and stainless steel Design: 2 in 1, combining portability and practicality Includes: 3 replacement grinding heads Compatible with chainsaw sizes: 14"/16"/18"/20" and chain types: 1/4"/3/8" Compatibility and accessories Designed with 2 holes at a 30-degree angle for different chain types Fixed rivet for secure positioning Installation Fix the position according to your needs Rotate the handle to sharpen the saw chain Usage Pull the chain to achieve precise sharpening Use the ratchet for accurate and repeatable positioning