Parlec 40 Taper 1.231″ Arbor Hole 3.50″ Gage Line V Flange Morse Taper Adapter Review May 11, 2018August 29, 2018 - LoudMandarin Technical Specification Item Taper Shank Tool Holder Taper Style Morse Taper Size CAT40 Inside Taper #4 Nose Dia. 2.000′ Projection 3.50′ This listing is for each.