Bearings are guaranteed for 1 year from the date of purchase. If you have bearings go bad within the first year, please contact us to arrange an exchange. 

If you’re having a hard time choosing the right size contact wheel for hollow grinding blades, the chart below should help.

Directions for using selection chart below:

1. Start in the blue column and locate the row corresponding to a blade thickness close to what you typically make.

2. Move to the right along that row until you find a white cell with a bevel height close to what suits your design.

3. Follow that column up to the red or yellow cells to identify the wheel diameter or radius needed to achieve that bevel height in that blade thickness.

Note: The chart assumes the cutting edge is ground to zero thickness. The more material you leave on the edge for sharpening, the shorter your bevel will be.