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Ridgid 38120 pipe die set with five high-speed steel dies in a metal case

Ridgid

Ridgid 38120 Pipe Die Set 2 1/2 to 4 In NPT 5 Dies

SKU CH-2Z1B-1HRTJ MPN 38120

Set of five high-speed steel dies cuts right-hand NPT threads on 2½ to 4 inch pipe for Ridgid 141 geared threaders

  • TypeDrain Components
  • Cuts 8 threads per inch for secure NPT joints
  • High-speed steel dies resist wear on steel and aluminium pipe
  • Five dies cover 2 1/2 to 4 inch pipe sizes
  • Right-hand thread direction matches standard plumbing practice
  • Designed for Ridgid 141 geared receding threaders

Pipe Die Set for 2 1/2 to 4 In NPT Threading

This Ridgid 38120 pipe die set contains five high-speed steel dies designed for right-hand NPT threading on pipe sizes from 2 1/2 inches to 4 inches. It is built for professional plumbers and pipe fitters who cut threads on aluminum, galvanized steel or steel pipe using compatible Ridgid 141 geared threading machines.

Sustained Threading Performance

The high-speed steel dies maintain cutting geometry during repeated passes on heavy-wall pipe, reducing the need for frequent die changes on long production runs. Compatibility with the 141 receding geared threader series allows continuous operation without manual die adjustment between cuts.

Replaces Worn Dies on Ridgid 141 Heads

This set directly replaces dull or damaged dies in Ridgid 141 geared die heads, identified by Grainger part 6YJ38 or manufacturer part 141. The upgrade is worthwhile when existing dies no longer produce clean, gauged threads at the specified 8 threads per inch.

Highlights

  • Cuts 8 threads per inch for secure NPT joints
  • High-speed steel dies resist wear on steel and aluminium pipe
  • Five dies cover 2 1/2 to 4 inch pipe sizes
  • Right-hand thread direction matches standard plumbing practice
  • Designed for Ridgid 141 geared receding threaders

Specifications

TypeDrain Components
BrandRidgid
Model38120

Questions about this item

How much heat does the Ridgid 38120 die set generate during continuous threading?

The high-speed steel dies produce only the friction heat normal for cutting NPT threads; no external cooling is required for all-day use on a Ridgid 141 geared threader.

What threading machine must I already own to run this 5-die set?

You need a Ridgid 141 receding geared threader or a compatible machine that accepts the 141 die head (Grainger 6YJ38).

Will these dies fit the older Ridgid 141 die head I already have?

Yes, the set is designed for the Ridgid 141 geared die head, so your existing head will accept all five NPT dies.

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