Lathe Head Degree Wheel

I have a Enco 19" Lathe. Pretty standard Chinese-copy lathe. I needed to make some gears from scratch, so I needed a divided wheel
to locate the lathe head and hold it. This wheel, along with the
screw in the end of the arm, hold the wheel while working. It snaps
onto the lock nut on the end of the lathe shaft, with belt removed.
The arm folds out of the way, when not in use. the 78 hole wheel
does multiples of 2, 3, 6, 13, 26 and 39. the 60 hole wheel does 2, 3, 4, 5, 6, 10, 12, 15, 20 and 30.