Koncocoo

Best Hex Threading Dies

Century Drill and Tool 97617 Hexagon Metric Die, 12.0 x 1.25
Size: 12.0 x 1.25. Enter your model number to make sure this fits.
Reviews
"You do not need the die holder to make it work, just a cresent wrench or vise grip pliers are fine."
"I get the die to where it seems to be straight but hand pressure doesn't come close to moving it, hit it with more lube and grip it with the pliers and start to turn it. The amount of force needed was significant enough to make me slightly worried so I grabbed my safety glasses, (hard metals can be brittle and I didn't want to risk anything if it shattered under pressure) and kept at it. It stayed pretty straight and finally hit the existing, functional section of threading and I was able to use hand pressure again."
"Slowly turn until it snugs up, then back and forth until it smooths out."
"After buying junk from sears that didn't work then buying dies at auto parts stores with no success I was about to spend $90 for one single die from Snap On until I found this."
"So I saved money for not buying extra tools to get this dye to work."
"I just threaded 12 inches of mild tool steel and it cut quite well."
"Works well for chasing threads."
"It looks like a thread chasing die, not a thread making die."
Find Best Price at Amazon
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."
Find Best Price at Amazon
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."
Find Best Price at Amazon

Best Round Threading Dies

RIDGID 91142 Model 535A Threading Machine, Automatic Pipe Threading Machine with 1.75-Gallon (6.6 liter) Oil Reservoir and Large Chip Tray for Longer Continuous Run, Machine Only - No Die Head or Dies
The high-speed dies can rapidly thread pipes from 1/8 inch to 2 inches (3 mm to 50 mm), bolts from 1/4 inch to 1 inch (6 mm to 25 mm), or larger pipes ranging from 2-1/4 inches to 4 inches (62 mm to 100 mm) when used with a 141 geared threader. Every tool that bears the RIDGID brand is engineered to the same high standards of quality, strength and endurance, as was that first heavy-duty pipe wrench more than 80 years ago. Every tool that bears the Ridgid brand is engineered to the same high standards of quality, strength and endurance as was that first heavy-duty pipe wrench more than 80 years ago. 2 Universal high speed dies are included and sized to cut pipes ranging from 1/2 inch to 3/4 inch (12 mm to 18 mm) and 1 inch to 2 inches (25 mm to 50 mm).
Find Best Price at Amazon

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.
Find Best Price at Amazon