Parlec 40 Taper 3 JT Arbor 1.50″ Gage Line V Flange Jacobs Taper Adapter Review May 24, 2018August 29, 2018 - LoudMandarin Technical Specification Item Arbor Series CAT 40 Spindle End 3MT Chuck End 0.811′ Overall Length 5.41′ This listing is for each.