This is a topnotch doweling jig, which can be viewed here: (scroll down to #2500)
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works as advertised. This one is NIB, never opened, and for sale t $30 plus shipping (retail is 52-60).
If interested shoot me an email at snipped-for-privacy@nospam.u.arizona.edu
remove the obvious bit after the ampersand.
-- Andy Barss