Optional Die Heads

  • Self-Opening (SO) - Automatic release for repeatable number of threads.
  • Quick-Opening (QO) - Manual release for user-specified thread lengths.
  • Bolt - Designed for bolt threading.
  • Mono - Dedicated to a specific size of thread.
  • Semi-Automatic (SA) - Can be quickly adjusted from size to size with manual release.
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Machine NPT Die Heads
Catalog Number Model No. Description How Opened Thread Direction Oil Thru Head Dies Used Pipe Capacity Bolt Capacity Weight
in. mm in. mm lb. kg
97065 811A  NPT Die Head Quick-Open R.H.  Q.O  RH  Yes  Univ.  1/8 - 2  3 - 50  1/4 - 2  6 - 50  13  5.7  Buy Now
97075 815A  815A 1/8" - 2" NPT Die Head, Self-Opening, RH  S.O  RH  Yes  Univ.  1/8 - 2  3 - 50  1/4 - 2  6 - 50  13  5.9  Buy Now
84537 816  1/8" - 3/4" Semi-Automatic Die Head  S.A  RH  Yes  Univ.  1/8 - 3/4  -  -  -  13  5.9  Buy Now
84532 817  1”- 2” Semi-Automatic Die Head  S.A  RH  Yes  Univ.  1 - 2  -  -  -  13  5.9  Buy Now
23282 842  Universal Die Head  Q.O  LH  Yes  Univ.  1/8 - 2  -  -  -  12 1/2  5.7  Buy Now

Machine BSPT Die Heads
Catalog Number Model No. Description How Opened Thread Direction Oil Thru Head Dies Used Pipe Capacity Bolt Capacity Weight
in. mm in. mm lb. kg
97070 811A  815A 1/8” - 2” NPT Die Head, Self-Opening, RH  Q.O  RH  Yes  Univ.  1/8 - 2  3 - 50  1/4 - 2  6 - 2  12 1/2  5.7  Buy Now
97080 815A  815A 1/8"-2" BSPT Self-Opening Die Head   S.O  RH  Yes  Univ.  1/8 - 2  3 - 50  1/4 - 2  6 - 50  13  5.9  Buy Now
23297 856  British Universal  S.O  LH  Yes  Univ.  1/8 - 2  3 - 50  -  -  12 1/2  5.7  Buy Now

Machine Bolt Die Heads
Catalog Number Model No. Description How Opened Thread Direction Oil Thru Head Dies Used Pipe Capacity Bolt Capacity Weight
in. mm in. mm lb. kg
97045 531  Bolt Die Head Quick-Open R.H./L.H. 1/4"-1"  Q.O  RH/LH  Yes  500B  -  -  1/4 - 1  3 - 25  7 1/2  3.4  Buy Now
97050 532  Bolt Die Head Quick-Open R.H./L.H. 1 1/8"-2"  Q.O  RH/LH  Yes  500B  -  -  1 1/8 - 2  29 - 51  9  4.1  Buy Now

Machine Mono Die Heads
Catalog Number Model No. Description How Opened Thread Direction Oil Thru Head Dies Used Pipe Capacity Bolt Capacity Weight
in. mm in. mm lb. kg
42047 500A  Mono  Q.O  RH  Yes  Mono  1/8  3  -  -  6 3/4  3.1  Buy Now
42052 500A  Mono  Q.O  RH  Yes  Mono  1/4  6  -  -  7  3.2  Buy Now
42057 500A  Mono  Q.O  RH  Yes  Mono  3/8  10  -  -  7  3.2  Buy Now
42062 500A  Mono  Q.O  RH  Yes  Mono  1/2  13  -  -  7 1/4  3.3  Buy Now
42067 500A  Mono  Q.O  RH  Yes  Mono  3/4  19  -  -  7 1/4  3.3  Buy Now
42072 500A  Mono  Q.O  RH  Yes  Mono  1  25  -  -  8  3.6  Buy Now
42077 500A  Mono  Q.O  RH  Yes  Mono  1 1/4  29  -  -  8  3.6  Buy Now
42082 500A  Mono  Q.O  RH  Yes  Mono  1 1/2  38  -  -  8 1/2  3.9  Buy Now
42087 500A  Mono  Q.O  RH  Yes  Mono  2  51  -  -  8 1/2  3.9  Buy Now
Used On: 1215, 1233, 535, 535A, 1822 Machines and 300, 300 Compact and 300-A w/carriage.
No. 811A Die Head replaces No. 811 and No. 841 Die Heads
No. 815A Die Head replaces No. 815 and No. 845 Die Heads
No. 500A Die Head replaces No. 500 Mono Die Heads.
No. 555 Die Head replaces No. 515
Note: British Die Heads use British Dies only
Note: 531 and 532 Die Heads replace 500B Dia Head
Individual Machine Die Heads do not include Dies

Die Head Racks for All Machine Die Heads
Catalog Number Model No. Description Weight
lb. kg
42485 4U  4 Heads  8 1/2  3.9  Buy Now
42490 6U  6 Heads  12 1/2  5.7  Buy Now
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1 Question | 1 Answer

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I am looking for a die head that will thread 3" black iron pipe.
2 weeks, 4 days ago
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Answer: 
Thank you for contacting RIDGID. Please call our Customer Service department at 800-4-RIDGID (800-474-3443) option 4. We will need to know the model number of the pipe threader you are currently using so that we can assist you with your question.
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