Tormek WM-200 AngleMaster
The AngleMaster has two magnets for convenient fixing onto the housing of the machine.
This patented AngleMaster has two functions: You can use it to set the jig to the grindstone so that it grinds your tool to any desired edge angle from 10° to 75° and you can use it to measure an existing edge angle on a tool.
It is designed to work on any grindstone diameter from 250 mm (10") down to 150 mm (6"). You achieve an exact setting irrespective of the degree of stone wear.