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 Ralmikes Veratile Tap Tool #00-#6 Taps, 1/2″ Shank $75.00 Read more Procunier #4 Tapping Head w/ Morse Taper #3 Shank $195.00 Read more Commander Select-A-Spindle Multi Spindle Tapping Head, No Driver $95.00 Read more Procunier #4 Tapping Head w/ Morse Taper #3 Shank $149.00 Read more