Abstract: A tool generally consisting of a handle, an implement pivotally connected to the handle, a first magnetic element mounted on the implement having a magnetic field of a selected polarity intersecting a path disposed circumferentially relative to the axis of the pivotal connection and a second magnetic element mounted on the handle having a magnetic field of a polarity of one of the same or the opposite of the selected polarity intersecting the circumferential path whereby dependent upon the angular relationship of the handle and the implement, the magnetic fields will have the effect of one of a first interaction, producing no motive force for angularly biasing the implement relative to the handle, a second interaction producing a repellant motive force for angularly biasing the implement relative to the handle and a third reaction producing an attractive motive force for angularly biasing the implement relative to the handle.

Abstract: An attachment device for attaching an implement, such as a knife, pager, telephone or the like onto a belt or other garment. The device includes a clip assembly for attachment to the belt, and includes a slot having an end portion circular in shape with a radius larger than the width of the slot. A pin fits into the slot only when at least one flat surface on the neck portion of the pin is parallel to one edge of the slot. The pin is allowed to rotate via the circular shape and the pin having a stem diameter corresponding the circular shape. This provides a locking mechanism where the narrower width of the slot prevents the pin from exiting the slot unless the instrument is turned a specific angle.