Abstract: A vise attachment for use on a vise assembly for holding objects having irregularly-shaped surfaces, comprising a small compact housing having a plurality of blade elements disposed adjacent to each other and slidably mounted within a rectangular opening on one side of the housing and movable between an extended position and a retracted position. Each element preferably comprises a plate member having smooth planar surfaces and a concave curved back edge and stop means disposed on upper and lower edges for setting a limit for extension of the blade from the housing. A self-distributing non-resilient medium is positioned within the housing and has a predetermined volume for filling the housing when the blades are in a retracted position. A distribution and reset means causes the blades to reposition themselves to extend fully through the rectangular opening when not holding an object.