SMC MKF50TN-30LZ-M9PWVZ Cylinder, Rotary Clamp MSRP: Now: $394.15 Was: MK-Z Swing Clamp Cylinder, Standard w/Auto Switch Mounting GroovesSMC s MK-Z has an allowable moment of inertia 3 times higher than the conventional MK and MK2 styles. The overall length is the same... MKF50TN-30LZ-M9PWVZ