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 silver NPT threading dies in a set

Wheeler-Rex

Wheeler-Rex 847745 NPT Dies UDH 1/2 to 3/4 PK4 pneumatic accessory

SKU CH-9KC1-J3G6S

Set of four universal NPT threading dies compatible with 1/2 to 3/4 inch pipe and multiple die-head part numbers

  • Product typeHydraulic Tool Accessories
  • Thread NPT pipe from 1/2 to 3/4 in with universal dies
  • Four dies per pack cover multiple pipe sizes
  • Fits Grainger die heads 4CW40 4Z974 5A195
  • Compatible with OEM heads 504A 711 713 811A 815A 816 817 842 97065
  • New Wheeler-Rex accessory for pneumatic threading machines

Wheeler-Rex 847745 NPT Dies 1/2-3/4

The Wheeler-Rex 847745 set supplies four universal threading dies for pipe sizes from 1/2 inch to 3/4 inch. They are designed for use with compatible threading machines and accept die heads referenced by part numbers such as 504A, 711, 713, 811A, 815A, 816, 817, 842, 97065 and 897065. The package contains four dies ready for pipe threading tasks.

Suits pipe-threading professionals using supported

These dies suit technicians who operate threading machines equipped with the listed compatible die heads and need to cut NPT threads on 1/2 to 3/4 inch pipe. They do not suit users who require dies for larger or smaller pipe diameters, different thread standards, or machines that do not accept the specified die head part numbers.

Package quantity of four dies determines job

The single specification that decides fit is the package quantity of four dies covering the 1/2 to 3/4 inch range. This quantity dictates how many threading operations can be performed before reordering and confirms the exact pipe size window the set addresses.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $140.99
Pricier than about 90% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameWHEELER-REX
Product typeHydraulic Tool Accessories

Questions about this item

How do I install these NPT dies into a compatible die head without damaging the threads?

Match the die set to a listed compatible head such as 504A, 711, 713, 811A, 815A, 816, 817, 842, 97065, or 897065, then seat each die squarely in its slot before tightening the head clamp.

What replacement schedule should I follow for the four dies when threading 1/2 in to 3/4 in pipe daily?

Inspect cutting edges after every few hundred threads; replace individual dies when teeth show rounding or when thread quality drops, rather than waiting for a fixed interval.

At what point does heat buildup limit continuous threading with this UDH die set on a threading machine?

Sustained cutting on steel pipe will dull the die edges before the machine overheats; pause to apply cutting oil and let the dies cool when thread finish degrades.

More in Bits, Hole Saws & Accessory Kits

Similar items