Carmex External Right Hand Whitworth Thread Turning Insert 12 TPI / 16 ER 12 W P25CExternal 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

With carefully engineered X and Y dimensions

Thread Type: 60° (Metric/Unified – Partial Profile)

this tool delivers exceptional performance and chip control when producing threads with an 11 TPI pitch

30° Helix

Applications: External threading for Trapezoidal leadscrews

Part Number: 21512

Featuring absolute and incremental measurement modes

3 mm—ensures smooth thread cutting

The Insize 0–200 mm Digital Caliper is a precision measuring instrument designed for accurate and efficient internal

1121003750

The tool features the MT7 carbide grade

Quantity of Leaves: 16 internal + 16 external