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Screw-Hole-Related Tools(Screw size (Nominal):7/8)

Threading tools have functions to cut threads in accordance with the required thread types and sizes, or to conduct plastic forming. Commonly-used tool type is formed tools called taps. They are used in many different ways; for example, handles are attached to them for manual machining, or for large-lot production, they are mounted to machine tools called tool holders or NC machine tool. High-speed steel is most commonly employed for these tools, and alloy carbide (coated alloy carbide is mainly applied) is also increasingly employed for its durability. When threading with taps, the thinner taps are, the more likely they break. As cutting chips solidify with heat, or the tap end makes contact with the bottom of pilot hole, there is more possibility the tap is damaged. Additionally, when using a coil insert, a dedicated tap needs to be used rather than a regular tap.

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Brand
Product Series
Days to Ship
Screw size (Nominal)
Screw Types
work material
Pitch (P), Number of Threading(mm)
Tool Material Type
Tap Type
Hole type
Chamfer threads (Lcf)
Coating Type
Coating Y/N
Overall Length (L)(mm)
  • On Sale Till 31/03/2025

Spiral Fluted Taps for Stainless Steels_SU+SP

    Solid Round Dies for Taper Pipe Threads_D-PT

      Solid Round Dies for Left Hand Threads_D-LH

      Brand

      YAMAWA MFG

      YAMAWA MFG

      YAMAWA MFG

      Product Series

      Spiral Fluted Taps for Stainless Steels_SU+SP

      Solid Round Dies for Taper Pipe Threads_D-PT

      Solid Round Dies for Left Hand Threads_D-LH

      Days to Ship 10 Day(s) or more 20 Day(s) 20 Day(s) or more
      Screw size (Nominal)7/87/87/8
      Screw Typesunified / WhitworthTaper for Pipeunified
      work materialHigh Carbon Steel (C with a content over 0.45%)[○] / Alloy Steel (SCM)[○] / Stainless steel (SUS)[○]--
      Pitch (P), Number of Threading(mm)9 ~ 14149 ~ 14
      Tool Material TypeHigh-speed steelHigh-speed steelHigh-speed steel
      Tap TypeSpiral TapDieDie
      Hole typeFor blind hole--
      Chamfer threads (Lcf)2.5P--
      Coating Type-Non-CoatedNon-Coated
      Coating Y/NNANANA
      Overall Length (L)(mm)115--

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