Carmex 16ER11.5NPTMXC/G Threading Insert 11.5 Tpi Npt

Product Description

The CARMEX 16ER11.5NPTMXC/G is a solid carbide laydown threading insert designed for external NPT thread cutting at 11.5 threads per inch (TPI). It features a TiN PVD coating applied under the MXC micrograin carbide grade designation, which supports extended tool life across a wide range of workpiece materials. The insert has a 60-degree included angle (30-degree flank) suited to NPT thread form, a 3/8-inch inscribed circle, and a thickness of 0.146 inches. It is used by machinists and toolroom technicians on CNC lathes and manual threading setups requiring right-hand external NPT thread production.

This insert is suited to pipe thread applications in both production and job-shop environments where NPT external threads must meet dimensional standards. The universal material grade designation covers a broad spectrum of materials including steel, stainless, cast iron, non-ferrous alloys, high-temp alloys, and hardened materials, corresponding to material codes H, K, M, N, P, and S. It is a single insert sold individually, with a minimum order quantity of 50 units, making it appropriate for tooling stock replenishment or production line setups.

Key Features

• Solid micrograin carbide substrate for wear resistance and edge stability
• PVD TiN coating extends tool life across universal workpiece materials
• Right-hand external NPT thread profile at 11.5 TPI
• 3/8-inch inscribed circle and 0.146-inch thickness for 16ER-style toolholders
• Certified to CE, ISO 13485:2016, ISO 14001:2015, and ISO 45001 standards
• 16ER insert style for standard laydown threading toolholder compatibility

Compatibility

Designed for use in 16ER-style laydown threading toolholders. Consult toolholder manufacturer specifications to confirm pocket geometry and clamping method before installation.

Installation Notes

Installation should be performed by qualified machinists familiar with indexable insert threading toolholders. Power down and lock out the machine spindle before seating or indexing the insert. Ensure the toolholder pocket is clean and free of chips before seating the insert to prevent seating errors that affect thread form accuracy. Follow the toolholder manufacturer's clamping torque guidelines for the insert screw.