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 Sale! Die Head, Threading Threads, National Acme DS 1-5/8 $149.00 Original price was: $149.00.$39.00Current price is: $39.00. Read more Tapping Head, Ettco 1-B , JT 6 Shank $49.00 Read more Die Set, Hex, 1/4″ to 1-1/2″, Coarse Thread, Mixed Manufacturers, USA $49.00 Read more Tap, Acme Tandem , 1/2″ – 10 TPI, Left Hand, Widdell, USA $49.00 Read more