Best Two Piece Threading Dies

Die construction: two-piece die set complete assembly. Die style: two-piece die system.
Find Best Price at Amazon
HHIP 12 Piece 1/8-1" NPT Taper Pipe Tap and Hex Die set includes one of each of 1/8-27, 1/4-18, 3/8-18, 1/2-14, 3/4-14 and 1-11-1/2 NPT tap and dies Thread ground high speed steel.
Find Best Price at Amazon
HHIP 110 Piece #4-3/4" and M6-18 Carbon steel tap and die set includes 1 taper tap, 1 bottoming tap and 1 die in each of these sizes 4-40, 6-32, 8-32, 10-24, 12-24, 10-32, 1/4-20, 1/4-24, 1/4-28, 1/4-40, 5/16-18, 5/16-24, 3/8-16, 3/8-24, 7/16-14, 7/16-20, 1/2-13, 1/2-20, 9/16-12, 9/16-18, 5/8-11, 5/8-18, 3/4-10, 3/4-16, 1/8-27NPT, 1/4-18NPT, M6 x 1.0, M8 x 1.25, M10 x 1.0, M10 x 1.5, M11 x 1.5, M12 x 1.25, M12 x 1.75, M14 x 1.25 and M18 x 1.5 die. T-handle tap wrench.
Find Best Price at AmazonBest Hex Threading Dies

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
Find Best Price at Amazon"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!"
Best Round Threading Dies

Brand new right hand thread die 1/2"- 28 TPI.
Reviews
Find Best Price at Amazon"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."