Why won't upper ball joint removal socket work?

I made one years ago out of a 3/4 drive 1 3/4" Craftsman socket by grinding down 4 points of a 12-point socket, this was for an early A small ball joint.

View attachment 1715891374

View attachment 1715891375


Lol, Did the same years ago with a 1-7/8 12 point for my '69 before the disc swap...........
upload_2022-3-18_12-13-2.png