SNARE interactions are not selective

An improved plier-like tool of the general type disclosed in my prior U.S. Pat. No. 3,276,238 but differing therefrom in that the movable jaw segments are pivotally connected to a reciprocable slide for swinging movement in a common plane toward and away from each other, rather than being mounted for sliding movement only. The slide is adapted to be reciprocated in its slideway by a roller which is mounted at the working end of a plier arm, i.e. the end remote from its handle end, which with closing movement of the plier handles moves in an ascending but substantially flat arcuate path, during the course of which the roller periphery abuts the lower end edge of the slide and actuates same in upward direction, as results in the movable jaw segments being actuated toward one another. Spring means effects retracting movement of the slide and corresponding spreading of the movable jaw segments whenever opening movement of the plier handles is initiated.