This Hook Tool by Michael Hosaluk is designed to make end grain hollowing quick and efficient. It leaves a very smooth surface which eliminates a lot of sanding time. The tool comes pre-shaped and sharpened and is just under 3″ long with a shank diameter to fit into a 5/16″ opening which requires mounting in a a tool bar to hold it in use.
Check out the Hook Tool Bar by TOD RAINES TOOLS.
Use the 1/4″ Half Round Diamond Hone to sharpen the hook tool.
Watch this YouTube video where I describe and use the Hook Tool in greater detail.
Here are few still shots from the video…