Does anyone on this forum know if the aforementioned mortising attachment is "dedicated" to Delta drill presses, or will it fit any drill press with a specific quill diameter? I looked at the manual for the attachment and it only references certain Delta drill presses. (see below)...

"The 17-924 Mortising Attachment converts your drill press into an accurate mortising machine and can be used with
the following units:
11-980 Drill Press (10")
14-070 Drill Press (14")
17-925 Drill Press (16-1/2")
11-990 Drill Press (12")
11-090 Radial Drill Press (32")
Delta Utility Drill Presses (15")
14-040 Drill Press (14")
17-900 Drill Press (16-1/2")

I have a chance to purchase this attachment at a great price, but need to know if it will fit my 1-7/8" quill diameter...........Thanks, Butch