Neck Joint Close view of the Stephen&#x27;s Extended Cutaway  N4&#x27;s neck is bolt-on and uses a special mounting system called the Stephen&#x27;s Extended Cutaway, which was invented by Seattle luthier Stephen Davies and then licensed by Washburn. It features a 5-bolt curved join allowing the player to access the higher frets while maintaining proper and comfortable hand position, due to its &#x27;heel-less&#x27; design.