Carmex Internal/External Whitworth Threadmill Insert 14mm / 11 TPI / 14–11 W MT7

Mill-Thread Insert – Whitworth 11 TPI, Internal / External

The Carmex 14–11 W MT7 is a precision thread-milling insert for cutting Whitworth (55°) threads with 11 TPI. Usable for both internal and external threading, it delivers accurate profile geometry, excellent surface finish, and repeatable results on steels, stainless steels, and non-ferrous alloys.

Optimized for CNC helical interpolation, the size 14 body provides high rigidity and stable engagement for medium thread diameters. The insert is manufactured from MT7 fine-grain carbide for superior wear resistance and heat stability, ensuring long tool life and consistent performance.

Fully compatible with Carmex SR Series toolholders in single, twin, or multi-insert configurations for versatile shop setups.

Key Features & Benefits

• Ordering Code: 14–11 W MT7
• Thread Type: Internal / External
• Thread Profile: Whitworth (W) – 55°
• TPI: 11
• Insert Size: 14
• H (Height): 7.5 mm
• T (Thickness): 3.1 mm
• Carbide Grade: MT7
• Cutting Edge: Single
• Applications: Internal & external Whitworth thread milling for mechanical assemblies, pipe fittings, and repair work
• Compatible Toolholders: SR Series (Single, Twin, Multi-Insert)

Carmex Precision Tools Ltd. is a global leader in threading technology, supplying Thread Turning Inserts, Mill-Thread Inserts, Solid Carbide Threadmills, and SR Toolholders engineered for accuracy, reliability, and long tool life.