Carmex External Right Hand Whitworth Thread Turning Insert 12 TPI / 16 ER 12 W P25C

SKU: 16 ER 12 W P25C

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Sale price$26.60

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Only 16 units left

Description

External Thread Turning Insert – Whitworth Profile (12 TPI)

The 16 ER 12 W P25C is a precision external thread turning insert designed specifically for cutting 12 TPI Whitworth thread forms, commonly used in traditional British-standard pipe and mechanical assemblies. With a 55° included angle and rounded thread root and crest in accordance with BS 84 standards, this insert ensures consistent, high-quality thread generation.

Made from versatile P25C-grade carbide, the insert provides balanced performance in general-purpose steel machining, combining good toughness, wear resistance, and thermal stability. With a 16 mm length and 3/8" I.C., and geometry featuring X = 1.1 mm and Y = 1.4 mm, it offers stable cutting, clean thread profiles, and reliable chip evacuation.

Key Features:

  • Ordering Code: 16 ER 12 W P25C
  • Thread Type: Whitworth (BS 84 Standard)
  • Profile: 55° included angle with rounded root and crest
  • Insert Type: External
  • Hand: Right Hand
  • L: 16 mm
  • I.C.: 3/8"
  • Pitch (TPI): 12
  • X: 1.1 mm
  • Y: 1.4 mm
  • Carbide Grade: P25C
  • Applications: External Whitworth thread turning for mechanical components, pipe fittings, and legacy hardware
  • Key Advantage: Reliable P25C-grade insert offering consistent Whitworth thread profiles and balanced tool life for general machining

Carmex Precision Tools Ltd. delivers world-class threading solutions for standard and specialized profiles. Their Whitworth inserts are a trusted choice for high-accuracy threading of legacy British threads in both industrial and maintenance settings.

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