Oregon 541656 Sharpener/Chain/Bar Kit, 16"Highlights: Length: 16" Easy To Use Precision sharpening system that gives chain saw users the power to sharpen their own chain in a matter of seconds with a simple attachment From dull to sharp in seconds Powersharp starter bar and chain kit with the saw sharpener Easier cutting Bar mount sharpener is lightweight, durable, & highly visible Exact alignment between cutter & honing surface for perfect angles & knife sharp edges For 3 8'' low profile