Rocker shaft shims

Here are the ones I made about 6 years ago to fix a problem with roller tip rockers on a 440. I used a 7/8" pipe split then a 7/8" ball mill down the center to make it fit.

View attachment 1715359735

Now that's innovation, you can buy ALMOST anything...or you can build it!
How did you hold down those "fish" to mill them? lol