Carmex 11IR14NPTBMA Threading Insert Npt 14 Tpi Carbide

Product Description

The CARMEX 11IR14NPTBMA is a solid carbide laydown threading insert designed for cutting internal NPT (National Pipe Taper) threads on a lathe or CNC turning center. It carries a TiAlN PVD coating applied via physical vapor deposition, which extends tool life in a wide range of workpiece materials. The insert runs at a 30-degree included angle, delivers 14 threads per inch, and measures a 1/4-inch inscribed circle with a thickness of 0.127 inches. It is a right-hand insert intended for internal threading operations and is suitable for universal workpiece material categories. Machinists and CNC operators in production and job-shop environments install this insert when threading pipe fittings, valves, or any component requiring a standard NPT taper thread form.

This insert is intended for internal NPT threading applications in residential and commercial pipe and fitting production, valve bodies, and fluid-system components. The universal material compatibility rating covers a broad spectrum of workpiece materials, including carbon steels, stainless steels, cast irons, non-ferrous metals, high-temperature alloys, and hardened materials. It is suited for turning operations where a consistent, accurate NPT taper thread profile is required across medium to high production volumes. The minimum order quantity for this insert is 10 pieces, sold individually per package.

Key Features

• Solid carbide substrate for rigidity and wear resistance in threading operations
• TiAlN PVD coating extends tool life across universal workpiece material categories
• 14 TPI internal NPT thread form with a 30-degree included angle
• Right-hand cut, laydown insert style for stable seating in compatible toolholders
• 1/4-inch inscribed circle with 0.127-inch thickness for consistent insert geometry
• Certified to CE, ISO 13485:2016, ISO 14001:2015, and ISO 45001 standards

Compatibility

Designed as a replacement or production-run threading insert for toolholders accepting the 11IR insert style. Compatible with universal workpiece material codes H, K, M, N, P, and S as classified by ISO material groupings. No specific machine or toolholder model numbers were provided in the product data.

Installation Notes

This insert is installed by a machinist or CNC operator into a compatible 11IR-style internal threading toolholder. Power down and lock out the machine spindle before seating or replacing the insert. Use the appropriate torx or hex key specified by the toolholder manufacturer to secure the clamping screw to the correct torque; do not overtighten. Inspect the insert pocket and clamping components for wear or debris before each insert change to ensure proper seating and thread accuracy.