Carmex External Right Hand Whitworth Thread Turning Insert 12 TPI / 16 ER 12 W BMA 1225 Piece Imperial Nitrile O-Ring Grab Kit Assortment and finishing

and finishing

the insert provides a standard level of reinforcement for thread repairs in less demanding applications

To know what size the insert should be it refers to the last two digits in the code -  DER 1212 H16 meaning a 16ER insert

Featuring a digital display with absolute measurement capability

Carmex External Right Hand Whitworth Thread Turning Insert 12 TPI / 16 ER 12 W BMA 1225 Piece Imperial Nitrile O-Ring Grab Kit Assortment and finishingExternal Thread Turning Insert Whitworth Profile (12 TPI) The 16 ER 12 W BMA is a precision ground external thread turning insert tailored for generating 12 TPI Whitworth threads. These 55 thread profilesconforming to BS 84 standardsare commonly used in pipe fittings, mechanical joints, and legacy British standard components that require accurate and consistent thread geometry. Manufactured from premium BMA grade carbide, the insert provides