While standard single-wedge clamps keep workpieces tight in one place, preventing upward and downward movement, double-wedge clamps generate a pull-down effect, pressing the workpieces downwards onto the fixture base. This type of clamp has serrated jaws for extra grip.
Low-profile clamps with cross V-slot (-C) are used for machining of the cylindrical workpieces. These clamps allow to place workpieces in both the horizontal and vertical planes.