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 Tap, Acme Tandem , 1″ – 5 TPI Right Hand $95.00 Read more Die Head, Geometric 5/16″ $149.00 Read more Die Set, Hex, 1/4″ to 1-1/2″, Coarse Thread, Mixed Manufacturers, USA $49.00 Read more