We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Four stainless steel pipe thread dies in a set

Ridgid

Ridgid 37925 Pipe Thread Die 1 in Stainless Steel 4 Pc

SKU CH-7C1G-HRP4B

Four-piece die set cuts 1 in NPT right-hand threads in stainless steel pipe using high-speed steel dies compatible with Ridgid handheld threaders

  • Cuts 1 in stainless pipe with NPT threads
  • Four high-speed steel dies resist wear on tough material
  • Right-hand thread direction matches standard pipe fittings
  • Fits Ridgid handheld die heads including 0-R and 31A
  • Works with manual and power threaders for versatile use

Ridgid 37925 Pipe Thread Die Set

This four-piece die set cuts 1-inch NPT threads on stainless steel pipe using right-hand threading. The dies are made from high-speed steel for durability and are compatible with Ridgid handheld manual and power threaders. It suits plumbers and maintenance technicians who need to create or repair threaded connections on stainless pipe.

NPT Thread Standard and Die Head Compatibility

The dies follow the NPT standard with 11 1/2 threads per inch for 1-inch pipe size. They fit Ridgid die heads with part numbers 0-R, 00-R, 11-R, 12-R, 30A and 31A. Buyers using non-Ridgid die heads or needing a different thread standard or pipe diameter will find this set unsuitable.

Installation and Common Issues

The dies install into compatible Ridgid die heads for use with handheld manual or power threaders. Proper alignment and lubrication are essential when threading stainless steel to avoid premature wear or damaged threads. Using the wrong die head or insufficient cutting fluid are the most frequent causes of poor results.

Highlights

  • Cuts 1 in stainless pipe with NPT threads
  • Four high-speed steel dies resist wear on tough material
  • Right-hand thread direction matches standard pipe fittings
  • Fits Ridgid handheld die heads including 0-R and 31A
  • Works with manual and power threaders for versatile use

Specifications

BrandRIDGID

Questions about this item

Should I choose the 1-inch stainless-steel set or a different die size?

This set is only offered in 1-inch size for stainless steel with four high-speed-steel dies cutting 11 1/2 threads per inch.

How does the 11 1/2 threads-per-inch figure affect threading speed on a job site?

The 11 1/2 TPI NPT pitch is the standard taper for 1-inch pipe, so each full turn advances the thread by that fixed amount on handheld manual or power threaders.

Which die heads accept the 0-R, 00-R, 11-R, 12-R, 30A and 31A part numbers listed?

Those part numbers identify Ridgid handheld die heads that directly accept the four dies in this 37925 package.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.