Shopping Cart

Your cart is empty.

Your cart is empty.

Burkit No 12-28 UNF Tap and Die Set, 12 x 28 UNF Machine Thread Tap and Round Die Right Hand

Free shipping on orders over $29.99

$9.99

$ 4 .99 $4.99

In Stock

1.Size:4-40 Unc


  • Tap Length: 2.5"/63.5mm, Thread Head: 1.04"/26.5mm, Shank Diameter: 5.6mm, Square Head: 4.5mm x 4.5mm (L*W), TPI: 28, Accuracy Class: 2B.
  • Die OD: 0.79"/20mm, Die Thickness: 0.28"/7mm, TPI: 28, Accuracy Class: 2A.
  • Technology: Straight fluted design, fast chip removal, and no blocking make your threads machining faster and easier.
  • Applications: Widely used in cast iron, copper, brass, abrasive steel, A3 steel, and other metal materials to process threads.
  • Package Include: 1 set No 12-28 UNF Tap&Die.



Product Description

Tap and Die set
tap

About Taps

Straight flute design, made of 6542 high speed steel. It is used to process threads of various through holes or shallow blind holes. Can process copper, brass, A3 steel, aluminum, cast iron and other materials.

Generally used in conjunction with tapping machines, integrated bench drills, CNC lathes, machining centers, etc. Manual processing is also possible. When operating, control the speed according to the hardness of the material, the higher the hardness of the processed product, the slower the speed.

Recommended feed rate:

Hard steel: 5-10m/min, cast iron: 8-10m/min, ordinary steel: 6-15m/min.

die

About Dies

Made of alloy tool steel, hardness and wear resistance. Used to repair external threads. When in use, the conical locking hole of the die is aligned with the screw of the wrench and tightened. The conical keyhole has a strong locking force and is not easy to loosen.

Suggest:

Appropriate lubricating oil should be added to the die-cutting edge when cutting, It is to be reversed every 1/4~1/2 turn to facilitate chip discharge from the chip hole.

Customer Reviews
4.6 out of 5 stars 274
4.2 out of 5 stars 43
4.6 out of 5 stars 45
4.6 out of 5 stars 248
4.3 out of 5 stars 35
4.7 out of 5 stars 90
Cutting Diameter 1/2 Inch 3/4 Inch 3/8 Inch 5/8 Inch 7/16 Inch 9/16 Inch
TPI 28 10 20 11 20 20

Tips

  • Please be sure to take protective measures when working, you need to wear goggles and protective gloves.
  • Before tapping confirm whether the diameter of the round hole is appropriate. Be sure to select the appropriate cutting oil for the complex tapping process and apply anti-rust oil for maintenance after use.
  • When tapping, control the speed according to the hardness of the material, it is necessary to add water or coolant to cool down to prevent excessive temperature and reduce tap loss.
Burkit

keith
Reviewed in the United States on February 4, 2025
The tap seem to be halfway decent, but the die is way under size sent the item back
P. S.
Reviewed in the United States on February 22, 2025
Cuts great male and female threads. Nice and tight.
Dennis E
Reviewed in the United States on February 17, 2025
Used to tap hole for 6-32 brass machine screws. Worked great. Only problem was the die was smaller diameter, and I had to buy tools to hold the tap and die. I should have read the description better.
tlp
Reviewed in the United States on January 12, 2025
it was just what I ordered. well pleased
Tomhayes4
Reviewed in the United Kingdom on July 21, 2024
Sometimes SSD 2.5" to 3.5" adapters aren't threaded. This fixes that problem.
Jon P
Reviewed in the United States on June 21, 2024
I needed to make some small screws for someone of varying length. Used both the tap and the die. The tap was used to hold the threaded screw so I could cut a slot in the screw. So the tap and die bot worked well and the screws fit the other person's equipment.
Michael Z. Williamson
Reviewed in the United States on December 16, 2024
Tried them, they work properly and cut cleanly.
case455
Reviewed in the United States on April 30, 2024
A decent balance between quality and price for a rare and archaic thread type (12-32 UNEF).
Gunnerrr
Reviewed in the United States on November 7, 2023
How can a tap and die set be superior to another? Their made to spec. This set was simply cheaper than the others and works just fine. That was enough reason for me to but them.
Derek Swan
Reviewed in the United Kingdom on October 11, 2023
Works great