Allan Adler

I ordered the Sears tool catalogue (Craftsman Power and Hand Tools 2004-2005)
and am unable to find any mention of a #1 Morse taper.

I don't know what's in their catalog, but you probably have to refer to a tool
name to find out.The term #1 Morse taper refers only to that particular form of
self-holding shank or corresponding bore, and not to the particular tool or
holder it happens to be found with--such as a dead or live center, or drill,
reamer, end mill, or such.
Frank Morrison