This gripper is modeled off my favorite gripper, PHD's GRB's angle gripper. The gripper arms rotate 90 degrees by pushing/pulling the center rod. The center rod has a pivot pin connected to each finger so when you push the rod it rotates the fingers.
You dont get as much clamp force with this type of gripper as a traditional parallel jaw gripper but in some applications it could save an axis of moment and its very fast.
(7X) M3 x 16mm Lg. Socket Head Cap Screws
(7X) M3 Hex Nuts
A set of gripper tooling is provided but additional tooling made for your application and can be mounted utilizing the M3 screws.