Don't need Mr.dial, I made my own with some knurled knobs I made on my mini-lathe.
The knobs fit over the existing bolt and are drilled through on one side at a right angle to insert a hex-screw to button the knob to the bolt head. Works great and didn't cost anything as I made it out of scrap.
Though Mr.dial would be very good for people who cannot make their own. Dillon should have come out with something like this on his equipment.
Now this here picture is the real Mr. dial-o-matic.