Wrench is TEMPORARILY on BACK ORDER (We are making more as fast as we can!): The OPEN END wrench is available. A handy narrow wrench to help with the lock rings on your Dillon press. We carry several versions: This one for RCBS (1 3/16") either regular or open ended. We also have a wrench for your Dillon dies (double ended - 1" and 1 1/8") - see Die Lock Ring Wrench Dillon.