The Granberg Grind-N-Joint 12V Hand Held Chain Grinder is the portable depth-gauge and tooth grinder for chainsaw chains in the field. It runs off a 12V vehicle outlet, jump pack, or deep-cycle battery and lets the operator dress chain cutters and depth gauges without removing the chain from the saw or returning to a bench grinder.
The Grind-N-Joint is sized for arborists, loggers, and Alaskan-mill operators who need to keep a chain cutting through long timber sessions. The hand-held format gives the user direct control over grinding pressure on each tooth — depth gauges drop a thousandth at a time, and cutters get the same angle every pass thanks to the bar-mounted guide. Replacement stones are stocked at chainsaw dealers and ship from Granberg’s parts catalog for predictable consumable costs.
Granberg has manufactured chainsaw sharpening systems in Richmond, California since 1955 — the Grind-N-Joint carries Made in USA designation per the manufacturer’s listing. Pair the Grind-N-Joint with a Granberg G106B File-N-Joint sharpener for backup field maintenance when 12V power is unavailable, and with an Alaskan MK-IV mill for full slabbing capability.






