Special 5 inche diameter diaphragm chuck with morse taper number three female bore for locators. Chuck has built in pneumatic hammer to expel morse taper locators. The diaphragm will center the work piece and pull it into a hard stop. I said I would quote the mounting stops two ways, but there really is no other option but to use the MT-3. If I were to press a solid carbide pin directly into the chuck, we would have no adjust ability for height or concentricity. The MT-3 type stops are hardened and ground to 60/63 RC. These stops are ground between centers on a Tschudin grinder to guarantee they will run dead. A brazed solid carbide post to locate the 60 deg. Internal angle of nozzle. To remove the stops, an internal pneumatic hammer is actuated to pop them out (as shown in print).