Norton 3X Grinding Wheels - Lee Valley Tools

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Description

These are designed for tough grinding jobs, such as reshaping turning tools, grinding hard alloys, heavy material removal in tool-making and restoration, or sharpening small or rounded tools that could hollow softer wheels.

They have a hard grade-K bond, yet run cooler than standard wheels because the ceramic alumina abrasive micro-fractures to expose fresh cutting edges, reducing friction. The wheels do not wear quickly, so require truing less often.

Two grits are available: 46x for heavy stock removal and a general-purpose 80x. The 6" and 8" wheels have 1" arbor holes; the 6" has four bushings (for 1/2", 5/8", 3/4", and 7/8" shafts); the 8" has three bushings (for 5/8", 3/4", and 7/8" shafts). Maximum rpm is 5410 for the 6" wheels and 3600 for the 8".

Note: The 8" wheel should be used only on grinders that are designed for 8" wheels, with no modification to the grinder.

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