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Four high-speed steel pipe threading dies in silver finish

Ridgid

Ridgid 37885 Pipe Thread Die HSS 4 Pc

SKU CH-S8Q5-QQ181

High-speed steel pipe die set threads 1 1/4 in NPT pipe for Ridgid handheld threaders

  • Cuts NPT threads on 1 1/4 in pipe with 11 1/2 TPI
  • Four high-speed steel dies resist wear on steel and galvanised pipe
  • Works with Ridgid 0-R 00-R 11-R 12-R 30A 31A die heads
  • Fits both handheld manual and power threaders
  • Right-hand thread direction matches standard pipe threading requirements

1-1/4 inch NPT pipe threading die set

This four-piece set provides replacement dies for cutting 1-1/4 inch NPT right-hand threads. The high-speed steel construction suits aluminum, galvanized steel and standard steel pipe. Each die delivers 11-1/2 threads per inch for standard taper pipe connections.

Fits Ridgid 0-R through 31A die heads

The dies mount directly into compatible Ridgid handheld manual and power threaders using die head part numbers 0-R, 00-R, 11-R, 12-R, 30A and 31A. This drop-in compatibility means no adapter is required and the existing threader handle or power drive is retained.

Replaces worn or missing dies in Ridgid threader

Swap out dull cutting edges to restore clean thread starts and reduce threading force. The upgrade is worthwhile when existing dies produce rough threads, bind in the cut or no longer meet NPT gauge tolerances. Not suited for left-hand thread applications or non-NPT thread forms.

Highlights

  • Cuts NPT threads on 1 1/4 in pipe with 11 1/2 TPI
  • Four high-speed steel dies resist wear on steel and galvanised pipe
  • Works with Ridgid 0-R 00-R 11-R 12-R 30A 31A die heads
  • Fits both handheld manual and power threaders
  • Right-hand thread direction matches standard pipe threading requirements

Specifications

BrandRIDGID

Questions about this item

How many 11 1/2 TPI NPT threads can the HSS dies cut before dulling on galvanised steel?

High-speed steel resists wear well, but exact thread count before resharpening depends on pipe hardness, lubrication and operator technique rather than a published figure.

Do the dies run hot or bind during a full day of power-threading 1 1/4 in steel pipe?

Proper cutting oil and correct feed pressure keep temperature and binding low; the four-die set shares the load evenly across each pass.

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

The dies fit Ridgid handheld die heads stamped 0-R, 00-R, 11-R, 12-R, 30A or 31A, covering both manual and power threaders.

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