I found this grinding jig while teaching at an art school in Ontario.  I was so impressed with the simple and sturdy design I contacted the company to become an agent.  This will turn any grinder into an effective sharpening tool.  The jigs fastens to the bench beside your grinder so it will fit any model.   The heavy platform acts as a great heat sink to help keep your blade cool while grinding.  For $59.95 you can turn a so-so grinder into an effective tool.