Home / Drilling & Tapping / Tapping / Die Head, Threading Threads, National Acme DS 1-5/8 Die Head, Threading Threads, National Acme DS 1-5/8$149.00 Categories: Attachments & Tooling, Tapping Description Description National Acme ThreadingHead w/ 3/4-16 NF Dies, 1-1/2″ Shank, OAL 10″, 23 Pounds Related products Die Set, Hex, 1/4″ to 1-1/2″, Coarse Thread, Mixed Manufacturers, USA $49.00 Read more Tapping Head, Procunier #1E 3/4″-16TPI Threaded Spindle $49.00 Read more Tapping Head, Procunier #3 MT #2 Shank $199.00 Read more Tap, Acme Tandem , 1″ – 5 TPI Right Hand, Widell USA $95.00 Read more