Carmex Internal UN Threadmill Insert 12mm/ 18 TPI

SKU: 12I18UNMT7

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Sale price$93.38

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Description

Mill-Thread Insert – UN 18 TPI, Internal

The 12 I 18 UN MT7 Mill-Thread Insert is designed for internal threading of Unified National (UN) profiles using CNC milling machines and helical interpolation techniques. With a thread pitch of 18 TPI, this insert is well-suited for medium-fine threading applications in compact spaces. Featuring a size 12 insert body, 6.3 mm height, and 2.9 mm thickness, it delivers excellent cutting precision and stability in smaller bore diameters.

Crafted from Carmex’s proven MT7 carbide grade, the insert provides high wear resistance, consistency, and longevity under demanding machining conditions. It is optimized for use with the Carmex SR series toolholders, supporting accurate alignment, secure clamping, and efficient chip evacuation for smooth and repeatable thread production.

Key Features:

  • Ordering Code: 12 I 18 UN MT7
  • Thread Type: Internal Threading
  • Thread Profile: UN – Unified National
  • Pitch (TPI): 18
  • Insert Size: 12
  • H (Height): 6.3 mm
  • T (Thickness): 2.9 mm
  • Carbide Grade: MT7
  • Insert Type: Internal-use only
  • Applications: Internal unified threads for mechanical and general-purpose use
  • Key Advantage: Stable and reliable threading in confined geometries, with SR series toolholder compatibility

Carmex Precision Tools Ltd. is globally recognized for its advanced threading solutions. The company offers a full range of Thread Turning inserts, Mill-Thread tools, Spiral Mill-Thread, Solid Carbide threadmills, and matching SR Series Toolholders ensuring full compatibility and performance from toolholder to insert.

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