

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The CARMEX 16IR3.0ISOBXC is a laydown-style threading insert designed for internal ISO thread cutting on CNC lathes and turning centers. Made from solid carbide with a PVD-applied TiN coating, this insert produces right-hand internal threads to the ISO standard at a 3.0 mm pitch and a 60-degree included angle. The 3/8-inch (0.3750 inch) inscribed circle and 0.1460-inch thickness conform to the 16IR insert style geometry. Machinists and CNC operators specify this insert for threading operations where consistent thread form, coating durability, and dimensional accuracy are required across production runs.
This insert is suited for internal threading applications in both production and job-shop environments. It is compatible with a wide range of workpiece materials, including steel, stainless steel, cast iron, aluminum, non-ferrous alloys, and heat-resistant superalloys, reflecting its universal H, K, M, N, P, and S material group coverage. Typical use cases include threading bores in hydraulic fittings, fastener components, and machined housings where ISO metric thread profiles are specified.
Designed as an OEM-style replacement threading insert for tool holders accepting the 16IR laydown insert style with a 3/8-inch inscribed circle. Verify holder seat geometry and clamping style before installation.
This insert is installed by qualified CNC machinists or tool room technicians. Power down and lock out the machine spindle before seating or changing inserts. Use the appropriate torx or clamping key specified by the toolholder manufacturer to secure the insert; do not overtighten or use impact tools. Confirm insert orientation and seating before resuming cutting operations.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!