Shopping Cart

Your cart is empty.

Your cart is empty.

Burkit 2pcs No 4-40 UNC Thread Tap Right Hand, HSS 4 x 40 UNC Straight Fluted Machine Tap

Free shipping on orders over $29.99

$8.99

$ 4 .99 $4.99

In Stock

1.Size:4-40 Unc


  • Cutting Direction: Right Hand, Accuracy Class: 2B.
  • Material: Manufactured by high-temperature quenching of 6542 high-speed steel (M2), with higher toughness and wear resistance.
  • 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: 2 pcs No 4-40 UNC Tap.



Product Description

Machine Thraeding Taps
tap

Applications

Straight flute design, made of 6542 high speed steel. It is used to process threads of various through holes or shallow blind holes. Blind holes cannot be processed. 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.

About This Tap:

  • Type: Straight Fluted
  • Measurement: SAE
  • Accuracy Class: 2B
  • Material: HSS 6542

Straight Fluted Tap

Straight Fluted Tap

Suitable for machining materials with powdery chips. Through hole or shallow blind hole can be machined.

Spiral Point Tap

Spiral Point Tap

Suitable for through holes, the chips are discharged downward. The machined thread surface is of high quality.

Spiral Flute Tap

Spiral Flute Tap

Used for blind hole machining, chip removal upward, good chip removal effect, no residual cutting.

Customer Reviews
4.7 out of 5 stars 111
4.6 out of 5 stars 106
4.8 out of 5 stars 132
4.7 out of 5 stars 56
4.2 out of 5 stars 22
4.6 out of 5 stars 33
Cutting Diameter 8mm 10mm 12mm 16mm 18mm 22mm
Pitch 1.25mm 1.25mm 1.5mm 1.5mm 1.5mm 1.5mm

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

ken langton
Reviewed in the United States on February 5, 2025
Good value for the money
James Henriksen
Reviewed in the United States on September 4, 2024
Was a little surprised it did so well in metal that has broken other taps.
buck
Reviewed in the United States on December 8, 2024
Taps have a hard life and over time get dull or don't work s well. Ordered these to replace a tap that was beginning to fail. Find stainless steel is hard on them, and harder steel too. Rather than have a tap break I order new ones, and these will work well, and a decent price too.
dirtproof
Reviewed in the United States on December 26, 2024
It broke easily, now I’m worse off. Don’t waste your time and money on subpar tooling
ABQMomma
Reviewed in the United States on November 2, 2024
Handy tool that did its job in mere seconds.
BillC in Madison, AL
Reviewed in the United States on November 16, 2024
Threaded a #8-40 hole - round and everything.
Kevin Carpenter
Reviewed in the United States on January 18, 2024
Works well and seems to be of good quality.
Kent Nicolai Scheer
Reviewed in the United States on April 19, 2024
Just what I needed
Jeff Platz
Reviewed in Canada on June 14, 2023
Broke on the first tap. Total waste of money
Recommended Products

$8.04

$ 3 .99 $3.99

4.3
Select Option

$17.99

$ 7 .99 $7.99

5.0
Select Option