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

✅ Durable & Long-Lasting – Designed to withstand heavy-duty use and maintain excellent cutting performance

Ordering Code: 16 IR 8 API RD MXC

this 2-11/16" bushing securely holds the broach in place while directing it through the machined hole

Size: 2-7/16"

reliable repair for threads in soft materials such as aluminium

INSIZE levels and protractors are the perfect instrument for levelling out components

full-profile threading with precise form control and reliable chip management

🔹 Shank Diameter: 6mm – Compatible with a wide range of rotary tools and grinders

5 times the diameter) for added strength and secure repairs

clean chip evacuation

this toolholder ensures optimal cutting performance and tool life during demanding machining tasks

and cutting edge integrity