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Ridgid 47770 four-piece high-speed NPT pipe die set

Ridgid

Ridgid 47770 1-2 in NPT High-Speed Pipe Die Trap 4-Piece

SKU CH-DMR9-BX26F MPN 47770

High-speed steel dies cut 1 to 2 inch NPT threads on aluminum, galvanized steel, and steel pipe using Ridgid threading machines 1215, 1224, 300, and 535

  • Product typeDrain Components
  • Cuts clean NPT threads with high-speed steel dies
  • Four-piece set covers 1 in to 2 in pipe sizes
  • Works with Ridgid 1215, 1224, 300 and 535 threading machines
  • Right-hand thread direction matches standard pipe fittings
  • 11 1/2 threads per inch for reliable sealing

1-2 in NPT High-Speed Pipe Die Set

This Ridgid 47770 set contains four high-speed steel dies for cutting right-hand NPT threads on pipe from 1 in to 2 in. It fits Ridgid universal die heads and works with threading machines in the 1215, 1224, 300 and 535 series. The dies handle aluminum, galvanized steel and steel pipe.

Suited for machine threading on compatible Ridgid

Plumbers and pipefitters who own a Ridgid threading machine listed above and need to cut 11 1/2 threads-per-inch NPT threads on 1 in to 2 in pipe will find this set matches their hardware. It is not for hand threading, left-hand threads, other thread standards or pipe outside the 1 in to 2 in range.

Four high-speed steel dies cut 11 1/2 TPI NPT

The single specification that decides fit is the 11 1/2 threads-per-inch NPT thread form combined with the 1 in to 2 in pipe capacity. If your machine and die head require that exact thread pitch and size range, this four-piece set is the correct replacement.

How it compares

Measured against everything we stock in Drain Stoppers, Strainers & Traps, at today’s prices. Recalculated every night.

Price $151.99
Pricier than about 82% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameRidgid
Model name47770
Product typeDrain Components

Questions about this item

Does the Ridgid 47770 4-piece die set generate much heat or noise when run continuously on a 1224 threading machine?

The dies are high-speed steel and produce normal threading heat; the machine motor and gearbox determine the noise level, not the die set itself.

Which threading machines and die heads must I already own to use the Ridgid 47770 NPT dies?

Compatible machines include the 1215, 1224, 300 and 535 series; the dies fit Ridgid universal die heads such as Grainger 4CW40, 4Z974 and 5A195.

Will the 11 1/2 TPI right-hand NPT threads cut by the 47770 mate with older galvanised steel pipe already in the system?

Yes, the dies cut standard NPT threads on aluminum, galvanised steel and steel pipe, matching existing right-hand NPT fittings.

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