Everyone who uses a chainsaw has been there: You’re at full throttle, the beautiful two-stroke symphony at max RPM, but you’re only seeing fine dust exiting the log, and you aren’t getting anywhere.

But the Granberg International bar-mounted chainsaw sharpener guides the file in exactly the same position for every stroke. It sharpens more accurately and preserves the chain’s working life, which ...

Woodworking is not just for lumberjacks or giant mill works — not since Erik Granberg’s father invented a chain saw sharpener more than 60 years ago and built his invention into an international ...