多功能萬用工具筆為一發明創作，特指一種小型工具筆可藉由不同組合方式產生多種使用功能，具有攜帶方便，易於操作組裝的優點。
就一般使用者的使用習慣而言，筆具與工具通常是分開使用，而且為差異性極大之物品，不僅使用方式及場合迴異，就二者之攜帶方便性而言，筆具亦較工具更容易於隨身攜帶及取用。經過本創作人詳加觀察後發現，一般使用者通常不會隨身攜帶工具，因此造成日常生活中突然需要使用工具，但又一時難以取得之小狀況不斷。有鑑於此，本創作人逐一針對筆具及工具二者之特性加以研究，構思研發結合二者功能於一體之設計來提昇使用方便性，並在經過不斷研發及修改後而有本創作之問世。
MULTIPURPOSE TOOL PEN
ABSTRACT
A tool device includes a number of tool members and enclosing members selectively attachable to either of two ends of a housing, a tool element slidably received in the housing and movable out through the enclosing member, and a moving device attached to the tool element for moving the tool element into and out of the housing or the enclosing member.
A follower is slidably received in the housing and coupled to the tool element, and a knob is coupled to the follower for moving the follower and the tool element relative to the housing. A positioning device may position the tool element to the housing. An additional tool device may be selectively attached to the housing.
