Description
Mill-Thread Insert – UN 6 TPI, Internal
The 40 I 6 UN MT7 Mill-Thread Insert is specifically engineered for internal threading of Unified National (UN) profiles on CNC milling machines using helical interpolation. Designed to cut at 6 TPI, this insert delivers precise and reliable threading results for large-diameter components using the Unified thread form. With a size 40 profile, 20 mm height, and 6.3 mm thickness, the insert ensures optimal cutting stability, robust thread geometry, and effective chip evacuation during demanding operations.
Manufactured from Carmex’s high-performance MT7 carbide grade, the insert provides excellent wear resistance, consistent performance, and extended tool life across production runs. For maximum threading efficiency, this insert is compatible with Carmex’s comprehensive range of SR series toolholders—available in single, twin, and multi-insert formats, with options for carbide shanks and internal coolant supply. These holders are designed to match insert sizes and ensure secure clamping and high-performance machining.
Key Features:
- Ordering Code: 40 I 6 UN MT7
- Thread Type: Internal Threading
- Thread Profile: UN – Unified National
- Pitch (TPI): 6
- Insert Size: 40
- H (Height): 20 mm
- T (Thickness): 6.3 mm
- Carbide Grade: MT7
- Insert Type: Internal-use only
- Applications: Unified internal threads for heavy-duty mechanical and industrial components
- Key Advantage: High-performance threading for large-pitch threads with compatibility to 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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