High Quality Material: Chain sharpener is suitable for 12-20 inch chainsaw, chainsaw chain sharpener body is made of aluminum alloy and stainless steel, which has strong corrosion resistance, compression resistance and durability.EASY INSTALLATION: It's as easy to use as a pencil sharpener; just put the clip on the rod, put the pawl on the tooth, insert the knife into the guide sleeve and turn the handle.Portable: The chainsaw sharpener with hand crank can be carried around for easy outdoor use, and has a strong safety profile to protect your hands from injury.Bonus: Every time, when you grind your teeth, just pull the chain. Precise sharpening ensures precise positioning of each tooth in the restoration: pawl start and stop action ensures precise and repeatable tooth positioning.Perfect Design: Adapt to different types of chains with different holes, whether the chainsaw sharpener is equipped with 2 holes for fixing the sharpener, one hole to fix the other to move back and forth, very flexible.Size: 6*3.5*2.1cmPacking List: 1 Piece Chain Sharpener (2 grinding heads)