Home / Drilling & Tapping / Tapping / Die Holder, Acorn, 3/4″ Shank, Butterfield No 3 Die Holder, Acorn, 3/4″ Shank, Butterfield No 3$95.00 Category: Tapping Description Description 7/16″- 14, 7/16″ 20 TPI, 1/2″ 13, 1/2″-20, (2)5/8″ 11 1/8″ – 27 NPT, (2)1/4″ 18 NPT Related products Tapping Head, Procunier #1E, Morse Taper #2, Item # K61011 $125.00 Read more Tapping Head, Snow A-21, MT #1 Shank w/ MT #2 Adapter Item K6310 $75.00 Read more Tapping Head, Procunier #1E 3/4″-16TPI Threaded Spindle $49.00 Read more Tap Head, Collapsible, 1-1/4″, Geometric $149.00 Read more