The press in the photo is a bit older than mine. I had a friend with a bench top press that approximate age. In both cases, the quill was tapered for a MT2 to male JT adapter. I don't recall the number for the Jacob's taper. Anyway, it will vary some depending on the size of the chuck. Mine is a 17" floor model. His was a 12" bench model.
It's been
my experience that only the small "toy" drill presses have the JT ground on the end of the quill. For serious Craftsman presses, it will probably be a MT2 inside. Take it down and find out for sure and then I
highly recommend a new chuck as well. The old one may be OK but I wouldn't trust it to be true.
Bill Hudson