Just got the Raptor Set Up tools from Craft supply and they produced a "wow" response from me. They're designed to give an accurate 40, 45 or 50 degree angle to gouges on a consistent basis. Sharpening has always been a big problem for me and I'm basically just not a "handy" guy so I need any help I can get. I'm sure some will think this is just another new tool of the month but for those with sharpening problems they will help. A video can be seen on the Craft Suppy website. (I don't work for them)