China Wholesale Tap Sharpener Factory - 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 Tap Sharpener Factory - Spiral Flute Tap – MeiWha detail pictures

China Wholesale Tap Sharpener Factory - Spiral Flute Tap – MeiWha detail pictures


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Well-run equipment, professional sales team, and better after-sales services; We are also a unified big family, everyone stick to the company value "unification, dedication, tolerance" for China Wholesale Tap Sharpener Factory - Spiral Flute Tap – MeiWha , The product will supply to all over the world, such as: Guatemala, Bolivia, Madras, Since the establishment of our company, we've realized the importance of providing good quality goods and the best before-sales and after-sales services. Most problems between global suppliers and clients are due to poor communication. Culturally, suppliers can be reluctant to question points they do not understand. We break down these barriers to ensure you get what you want to the level you expect, when you want it.
  • The factory technical staff not only have high level of technology, their English level is also very good, this is a great help to technology communication.
    5 Stars By Sara from Uruguay - 2018.06.18 19:26
    As a veteran of this industry, we can say that the company can be a leader in the industry, select them is right.
    5 Stars By Abigail from Canada - 2017.12.09 14:01
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