Description
Mill-Thread Insert – WHIT 11 TPI, External & Internal
The 30-11 W MT7 Mill-Thread Insert is specifically engineered for producing British Standard Whitworth (BSW/BSF/BSP) threads using CNC milling with helical interpolation. Designed for both external and internal threading, this insert conforms to the 55° Whitworth profile and is ideal for precision thread milling in mechanical, fastening, and hydraulic applications. With an insert size of 30, a height of 16 mm, and a thickness of 5.5 mm, it delivers solid cutting stability and high accuracy for medium to large thread sizes. Manufactured from Carmex’s proven MT7 carbide grade, this single-edge insert provides excellent tool life, wear resistance, and thread consistency under high-load and extended production conditions.
As part of the Carmex Mill-Thread system, this insert ensures fast and reliable threading performance across a wide range of setups. It is also fully compatible with SR series toolholders available in single, twin, and multi-insert formats, featuring internal coolant options and reinforced carbide shanks. These holders ensure secure clamping, maximum rigidity, and high repeatability, making them ideal for demanding thread milling applications.
Key Features:
- Ordering Code: 30-11 W MT7
- Thread Type: External and Internal Threading
- Thread Profile: WHIT – Whitworth (BSW, BSF, BSP)
- Pitch (TPI): 11
- Insert Size: 30
- H (Height): 16 mm
- T (Thickness): 5.5 mm
- Carbide Grade: MT7
- Insert Type: Single cutting edge
- Applications: Standard Whitworth threads for general engineering and fluid systems
- Key Advantage: Reliable threading with robust geometry and long-lasting carbide performance
Carmex Precision Tools Ltd. is an industry leader in the development and manufacture of high-performance threading tools. Their expansive product range includes Thread Turning inserts and holders, Mill-Thread systems, Spiral Mill-Thread, and Solid Carbide threadmills engineered to meet the needs of precision machining in a variety of sectors.
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