I come in different designs. I am hand-held. My purpose is to tighten tiny objects. I increase the turning motion of a person's hand. I have a handle and a blade, which has a tip. My handle can be made from wood or plastic. Sometimes this handle is covered with a rubberized material. I can have many kinds of tips. The two most common ones are standard and Phillips. A Phillips head does not have to belong to a person .....