Home / Drilling & Tapping / Tapping / Die Head, Geometric 5/16″ Die Head, Geometric 5/16″$149.00 Category: Tapping Description Description 5/16″ DS Geometric Die Head, 1/2″ Shank, Comes w/ 8-32 Dies, New Haven Connecticut Related products Tap, Acme Tandem , 1/2″ – 10 TPI, Left Hand, Widdell, USA $49.00 Read more Tap, Acme Tandem , 1/2″ – 10 TPI, Left Hand, Widdell, USA $49.00 Read more Tap, Acme Tandem, 7/8″ – 6 TPI Right Hand $75.00 Read more Tapping Head, Ettco 1-B , JT 6 Shank $49.00 Read more