The Granberg G106B File-N-Joint is the bar-mounted manual chainsaw sharpener that has been the field standard since 1955 — a hand-filing guide system that clamps to the chainsaw bar and uses a round file (sold separately) to dress every tooth at the exact same angle without removing the chain from the saw. No batteries, no power source, just precision-machined guides and a file.
The File-N-Joint locks the file at user-set top-plate and side-plate angles so every tooth on the chain comes out with consistent geometry. The depth gauge stop at the back of the unit sets the file pressure and prevents over-filing. The whole sharpener weighs under a pound, fits in a chainsaw maintenance kit, and works in the woods miles from the nearest outlet.
Granberg has manufactured the File-N-Joint in Richmond, California since 1955 — the G106B carries Made in USA designation per the manufacturer’s listing. Pair the G106B with the Granberg G1012XT 12V electric sharpener for full-time field maintenance — the manual filer handles light touch-ups and the electric grinder handles full restoration after rocks or hidden nails.
