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 hook tool comes pre-shaped and sharpened and is just under 3″ long with a shank length of about 1″ and a shank diameter of 7 mm. Make your own tool bar or use the Hook Tool Bar by Tod Raines Tools which has a opening of 5/16″ to hold the Hook Tool (and other cutter tips that may fit)
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…