Home / Drilling & Tapping / Tapping / Geometric Die Head, 3/4″ Shank, Chaso 9/16″ ED Geometric Die Head, 3/4″ Shank, Chaso 9/16″ ED$149.00 Category: Tapping Description Description Chaso Tool Division, North Branch Michigan. I do not have any dies. 3 Pounds Related products Tap, Acme Tandem , 1/2″ – 10 TPI, Left Hand, Widdell, USA $49.00 Read more Tapping Head, Procunier #1E 3/4″-16TPI Threaded Spindle $49.00 Read more Taps, Set of 3, 1″-12 NF, Cleveland (2 Available) USA $30.00 Read more Tap, Acme Tandem , 1″ – 5 TPI, Left Hand, USA $95.00 Read more