Small curved cutting edges:

  The stone is placed on a flat surface.

  The blade is obliquely moved on the stone 
  in the "cutting" movement, with the correct 
  inclination. The blade faces are alternately 
  whetted.

  Small straight cutting edges:

  The stone is placed on a flat surface. The blade
  is obliquely moved on the stone in the "cutting"   
  movement, with the correct inclination. The 
  blade faces are alternately whetted.

  Large cutting edges:

If the object that is to be grinded is to large to hold in ones hand it needs to be placed on the edge of a table. The object needs to be grinded down with a larger grinding stone and the grinding needs to be done with a circular motion.