Description
Mill-Thread Insert – UN 18 TPI, Internal
The 14 I 18 UN MT7 Mill-Thread Insert is engineered for internal threading of Unified National (UN) profiles using CNC milling machines and helical interpolation. Designed to produce threads at 18 TPI, this insert is ideal for fine to medium-fine internal threads in mechanical and general-purpose applications. With an insert size of 14, a height of 7.5 mm, and a thickness of 3.1 mm, it offers reliable cutting performance and thread accuracy.
Manufactured from Carmex’s premium MT7 carbide grade, the insert delivers excellent wear resistance, consistent results, and long service life. It pairs seamlessly with Carmex’s SR series toolholders, which support a variety of threading setups and enable efficient chip removal, internal coolant supply, and secure insert retention.
Key Features:
- Ordering Code: 14 I 18 UN MT7
- Thread Type: Internal Threading
- Thread Profile: UN – Unified National
- Pitch (TPI): 18
- Insert Size: 14
- H (Height): 7.5 mm
- T (Thickness): 3.1 mm
- Carbide Grade: MT7
- Insert Type: Internal-use only
- Applications: Fine-pitch unified internal threads in mechanical and general-use parts
- Key Advantage: Accurate, durable threading performance when used with SR series toolholders
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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