Old Craftsman Drill Attachment

by Tom
(VA)

Old Craftsman Drill Attachment

Any one know any thing about this thing? I found it in a box of junk and it still works. It is made of brass,and the only thing written on it is Craftsman,no numbers. I hooked it to my drill and it still cuts.it a neat little jig saw attachment. I was wondering if any one knew what year it was from,or any other info out there for it. I searched the internet for hours with no luck. The only thing I saw was the circular saw attachment.thanks