This is a replacement dry grindstone for the Axminster Craft AC125WDG 125/200 Wet & Dry Grinder. This aluminium oxide 100 grit stone is 125mm in diameter by 50mm wide.
White Aluminium Oxide grinding wheels are a preferred choice for general tool sharpening of high carbon and HSS tools.
Compared to general purpose grey grinding wheels, white wheels cut much cooler with far less tendency to overheat a tool’s edge (if you press hard enough for long enough you can still blue the edge).
These white grinding wheels have a medium hard vitrified bond with a medium structure. They are friable and cut freely offering a fast result and clean finish.