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 Tapping Head, Telco MT #2, 0-10 Capacity, Model 189 $75.00 Read more Collet, 1/4″, 3E, Procunier $10.00 Read more Collet, 1/2″, 3E, Procunier $10.00 Read more Tapping Head, Procunier #1E 3/4″-16TPI Threaded Spindle $49.00 Read more