I got inspired to this design, when I recently hurt the inside of my hand using a conventional screwdriver. What is special about it is, that the handle is detatched from the rest and symmetrical in shape in such a way, that it provides a comfortable grip, whether you are screwing a screw in or out turning the screwdriver clockwise or counter-clockwise. Thus the ratchet mechanism can be very simple. There is no need for a "gear"-mechanism like the one commonly used in ratchet screwdrivers. The cavity inside the handle may be used to house a small collection of different screw bits.
#DIY #ergonomic #hand_tool #handyman_items #inventions #tool