Carmex 16IR11.5NPTMXC/G Threading Insert 11.5 Tpi Npt

Product Description

The CARMEX 16IR11.5NPTMXC/G is a solid carbide laydown threading insert engineered for internal NPT thread cutting at 11.5 threads per inch. It carries a TiN coating applied via PVD process, which improves surface hardness and extends tool life across a broad range of workpiece materials. The 16IR insert style features a 30-degree included angle, a 3/8-inch inscribed circle, and a 0.146-inch thickness. Designed for right-hand internal threading, this insert is the correct choice when cutting standard NPT taper pipe threads on the inside diameter of a workpiece. CNC machinists and tool-and-die professionals handling pipe fitting, manifold, or fluid-system component production will recognize this geometry immediately.

This insert is suited for internal NPT threading operations on CNC lathes and turning centers across a wide range of industries including oil and gas, fluid power, hydraulics, and general machining. The MXC grade is rated for universal material compatibility, covering carbon steels, stainless steels, cast irons, non-ferrous metals, superalloys, and hardened materials. It is sold individually with a minimum order quantity of 50 pieces, making it appropriate for shop stock replenishment or production tooling setups where consistent thread quality is required across high-volume runs.

Key Features

• 11.5 TPI internal NPT thread profile for standard taper pipe thread cutting
• Solid carbide substrate with PVD-applied TiN coating for extended wear resistance
• MXC grade rated for universal workpiece material compatibility including steels, cast iron, non-ferrous, and superalloys
• Right-hand cut, 30-degree included angle, 16IR laydown insert style
• 3/8-inch inscribed circle with 0.146-inch thickness for standard toolholder seating
• Manufactured to CE, ISO 13485:2016, ISO 14001:2015, and ISO 45001 standards

Compatibility

Designed as an OEM-style replacement or production threading insert for 16IR-style internal threading toolholders accepting a 3/8-inch inscribed circle laydown insert geometry.

Installation Notes

Installation is performed by a qualified machinist during toolholder setup on a CNC lathe or turning center. Power down and lock out the machine before seating or changing inserts. Use the correct torque wrench and insert screw as specified by the toolholder manufacturer - do not hand-tighten with pliers or substitute fasteners. Verify insert orientation for right-hand internal threading before running the program, and confirm the NPT taper angle is programmed correctly in the threading cycle.