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Best Hex Threading Dies

Irwin Industrial Tools 1920 Tap and Hex Rethreading Die Set, 12-Piece
Set includes: Hexagon Re-threading Dies and Pipe Thread Taps: 1/8 - 27 NPT, 1/4 - 18 NPT, 3/8 - 18 NPT, 1/2 - 14 NPT, 3/4 - 14 NPT, 1 - 11-1/2 NPT. Enter your model number to make sure this fits.
Reviews
"Seems like it's a nice set but haven't used it yet."
"This is a really well made product."
"This set is reasonably priced, and the quality is about as good as you would ever need for any normal use."
"Nice and sharp."
"Decent set - over priced, the Taps work great, but the Dies don't!"
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Century Drill & Tool 97120 High Carbon Steel Fractional Plug Tap, 7/8-14 NF
Size: 7/8-14 NF. Fractional carbon steel plug taps offer precision cut threads, accurately formed for consistent, exact threading.
Reviews
"I check the country of manufacture and most seem to be made in Japan."
"Carbon steel will last long term in aluminum, short term in steel."
"Had to retap a crankshaft where the bolt goes in to hold the harmonic balancer on."
"Good quality tool."
"same exact tap available locally was 3 times the money..........now that is not a good investment in my mind."
"Worked as expected on steel part I needed to make."
"I needed to rethread a hydraulic ram and these worked perfectly."
"Worked very well for cutting threads in high dense plastic which is what I ordered it for."
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Bosch B46024 5/8-11 Size and Thread Black Oxide Hex Dies (Bulk)
Bosch black oxide taps and dies offer superior durability and speed for most general-purpose applications. Heat-treated carbon steel provides long life and clean, accurate threads.
Reviews
"I had to put 5/8-11 threads on the ends of cold rolled round bar to make some axles with ends capped with ny-lock nuts."
"My first impression was that the die appeared to be high quality and after using it twice now, I can say it performs like it's high quality."
"And, by golly, actually made of tool steel and tempered and oxidized properly."
"Worked great on a hard application."
"I had to shorten a drag link on my rider mower."
"Worked great paid for itself in the first 10 minutes still going strong."
"Used tap magic oil and managed to add about 1.5 additional inches of thread to a grade 8 bolt before it was so dull it wouldn't cut threads anymore."
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Best Round Threading Dies

1/2" - 28 Right Hand Thread Die 1/2 - 28 TPI
Brand new right hand thread die 1/2"- 28 TPI.
Reviews
"This die worked fine, cut sharp, muzzle brake went on perfectly and save yourself some heartache and get the (TAT) threading alignment tool too, the combination is a must for barrel threading...always have patience and do a good job, impatient people screw things up !"
"This cleaned up my 1/2 -28 threads perfectly."
"great product."
"HI QUALITY AND LONG LASTING!"
"I used this to chase some dirty treads on a .22 LR barrel."
"I bought this because of the many good reviews, but I received a 5 hole, 1/2-28 die and the threads would not fit onto a threading alignment tool."
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Best Two Piece Threading Dies

Greenfield Threading 423055 Die System Complete Assembly, 1" - 8 #5, Carbon Steel, Uncoated (Bright) Coating, Right Cut, 2-Piece
Die construction: two-piece die set complete assembly. Die style: two-piece die system.
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