Home / Drilling & Tapping / Tapping / Tap, Acme Tandem , 1/2″ – 10 TPI, Left Hand, Widdell, USA Tap, Acme Tandem , 1/2″ – 10 TPI, Left Hand, Widdell, USA$49.00 Category: Tapping Related products Tap, Acme Tandem , 1/2″ – 10 TPI, Left Hand, Widdell, USA $49.00 Read more Tapping Head, Telco MT #2, 0-10 Capacity, Model 189 $75.00 Read more Tapping Head, Snow A-21, MT #1 Shank w/ MT #2 Adapter Item K6310 $75.00 Read more Die Head, Geometric 5/16″ $149.00 Read more