On machines for boilies. I recommend you this model for balls of 5 and 10 mm. The cost, taking into account the replacement equipment, is 6000 USD, the price includes delivery to the door. For balls with a diameter of 15.20 and 25 mm, you need to take separate machines. It does not work to make replaceable shafts. The cost of each car is 3000 USD The price includes delivery to the door.