How can I ensure uniform tooth length when using bar-mounted sharpening tools?

Due to bar width variations, rotating the file holder or grinder on a G106B or G1012XT may shift the file or stone forward/back relative to the cutter. Use calipers or a bolt with a nut set to the correct tooth length to ensure uniform sharpening.

How long does a stone last?

The answer will vary, of course, based on how often you sharpen and how far back you take each tooth. In general though, one stone will last through 30 feet of chain given normal use.

How do I sharpen a carbide chain using your grinders?

You will need to purchase diamond grit stones, again with a 1/8” threaded shaft.

What size stone or file should I use for my chain?

For Low Profile chain, use a 5/32 stone or file. For .325, use a 3/16 stone or file. For 3/8 and .404, use a 7/32 stone or file. To lower depth gauges, use a ¼ or a 3/8 stone, or a flat file.

How do I lower depth gauges?

Use Granberg’s EZ Gauge with handheld grinders to set proper stone height and use the notch as a guide. For G106B or G1012XT, set the dial at the cutter’s front edge, lower by 1–2 clicks, then file or grind until the gauge is level.

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⚙️ Sharpen Smarter, Not Harder – The Ultimate Chain Grinder for Pros

HIGH SPEED EFFICIENCY - Powered by a 12V motor spinning at 24,000 RPM to get your chains razor-sharp in record time.
CALIBRATED SWIVEL GUIDE - Set and maintain the perfect sharpening angle with integrated, easy-to-use swivel guide markings.
ROBUST LIGHTWEIGHT BUILD - Crafted from cast aluminum, polycarbonate, and zinc-plated steel for durability without the bulk.
VERSATILE STONE COMPATIBILITY - Includes 3 grinding stones (5/32in, 3/16in, 7/32in) to cover all standard chain pitches and depth gauges.
PRECISION ON THE BAR SHARPENING - Sharpen your saw chain directly on the guide bar for flawless angle accuracy every time.

The Granberg Grind-N-Joint Bar Mounted 12 Volt Chain Grinder is a high-performance, motorized sharpener designed to attach directly to your chainsaw bar. Featuring a powerful 12V motor running at 24,000 RPM, it ensures precise, fast sharpening with included stones for all standard chain pitches. Built from durable aluminum alloy, polycarbonate, and galvanized steel, it offers professional-grade accuracy with calibrated swivel guides for perfect angles, making it an essential tool for any serious saw user.

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Brand	GRANBERG
Material	Aluminum alloy, Polycarbonate, Galvanized steel
Product Dimensions	32L x 17.8W x 5.1H Centimeters
Style	Angled
Power Source	Corded Electric
Colour	Orange,black
Voltage	12 Volts
Maximum Rotational Speed	24000 RPM
Global Trade Identification Number	00012714554601
Manufacturer	Granberg
UPC	012714554601
Item model number	G1012XT
ASIN	B002GCZC3A

Granberg Grind-N-Joint Bar Mounted 12 Volt Chain Grinder

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