China Wholesale Threading Tap Manufacturers - Spiral Flute Tap – MeiWha

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Following are recommendations for the degree of spiral for various materials:

Spiral flute taps are more suitable for processing non-through hole threads (also called blind holes), and the chips are upward during processing discharge. Due to the helix angle, the actual cutting rake angle of the tap will increase as the helix angle increases.

• High spiral flutes 45° and higher – effective for very ductile materials like aluminum and copper. If used in other materials, they will usually cause the chips to nest because the spiral is too • fast and the chip area is too small for the chip to form correctly.
• Spiral flutes 38° – 42° – recommended for medium to high carbon steel or free machining stainless steel. They form a chip tight enough to easily evacuate. On larger taps, it allows for pitch relief to ease the cutting.
• Spiral flutes 25° – 35° – recommended for free machining, low or leaded steels, free machining bronze, or brasses. Spiral flute taps used in brass and tough bronzes normally do not perform well because the small broken chip will not flow up the spiral flute well.
• Spiral flutes 5° – 20° – For tougher materials such as some stainless, titanium or high nickel alloys, a slower spiral is recommended. This allows the chips to be slightly pulled upward but does not weaken the cutting edge as much as higher spirals will.
• Reverse cut spirals, such as RH cut/LH spiral, will push the chips forward and are usually 15° spiral. These work especially well in tubing applications.

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China Wholesale Threading Tap Manufacturers - Spiral Flute Tap – MeiWha detail pictures

China Wholesale Threading Tap Manufacturers - Spiral Flute Tap – MeiWha detail pictures


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We'll make each hard work to become excellent and excellent, and speed up our measures for standing from the rank of intercontinental top-grade and high-tech enterprises for China Wholesale Threading Tap Manufacturers - Spiral Flute Tap – MeiWha , The product will supply to all over the world, such as: Japan, Guatemala, Uzbekistan, There are advanced producing & processing equipment and skilled workers to ensure the products with high quality. We have found an excellent before-sale, sale, after-sale service to ensure the customers that could rest assured to make orders. Until now our products are now moving on fast and very popular in South America, East Asia, the Middle east, Africa, etc.
  • This manufacturers not only respected our choice and requirements, but also gave us a lot of good suggestions, ultimately, we successfully completed the procurement tasks.
    5 Stars By Moira from Paraguay - 2017.02.18 15:54
    Production management mechanism is completed, quality is guaranteed, high credibility and service let the cooperation is easy, perfect!
    5 Stars By Mario from Benin - 2018.02.08 16:45
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