Stop Module Type 1

Just like most Blank System stoppers, these are installed on a machined pocket using one bolt.

Various jaw types are available. Generally the serrated (R) and smooth  (S) are the most popular customer selections.

It is designed to be installed so that the narrow side is positioned against the workpiece.
However, because at least 3 sides of these clamps are smooth, clamping the workpiece against any of the stopper sides is possible.