This wrench fits the Lee Lock Ring greatly. Fast & free shipping. My only concern is due to the plastic/polymer material it's made of, it flexes & slips off the ring if you apply too much torque. But it seems all you need to secure the die is just enough torque to put pressure on the rubber o ring on the lock nut to secure the die into place for use. It doesn't seem to need extreme torque to hold securely in place.