Threaded mold for pottery clay

Always wanted to make threads in your turning. Now you can with these threaded jigs. While turning, put the jig on your work. Let it dry a little and carefully turn in the direction of the thread and the thread is in! The shrinkage of the clay has been taken into account. Therefore there are 2 types a mold for pottery clay and one for stoneware clay. Be careful not to turn too wet to make sure the thread fits the soap pumps and oil/vinegar bottle caps. Here is a demonstration video