[19Fordy]

Thanks, Shoebox for posting your seal removable idea. You made me remember a slide hammer I made in 1975 to which you could attach a Jacob's chuck for similar jobs. Perhaps others can make one also.
I had saved the chuck from an old electric drill. I have 3 other chucks if anyone would like to adapt one to their slide hammer. You can thread the shanks as they are not hardened. Just send me a PM.