A hand-held instrument has a distal section and a proximal section joined by an attachment piece. The attachment piece enables the distal section to be swiveled/rotated independent of the proximal section. A tip, such as an electrode tip, is coupled to the distal end of the distal section and rotates with the distal section, enabling a user to adjust the rotational orientation of the tip during use.一種手持設備，其具有由一附接件結合的一遠區段及一近區段。該附接件使該遠區段能獨立於該近區段而轉動/旋轉。一端部，例如一電極端部，其耦接至該遠區段之遠端且隨著該遠區段旋轉，讓使用者能在使用期間調整該端部的旋轉定向。
