273 Style Rocker Arm Adjusting Screw

Run a sharp tap through the rocker. Interference fit adjusters were used to reduce costs.

Don’t mix the two types of adjusters, meaning don’t use a straight threaded adjuster in an interference hole and the other way around.
I do have a mixed bag of adjusters this was bothering me for a long time. But when I went to remove one, they were jammed together so tight that I needed a torch to take them apart.
What do you recommend I use? I want to replace all of them so I know that they are compatible with each other.