Carmex 50800015 Threading Insert H23 Npt Carbide MT7

Product Description

The CARMEX 50800015 is a carbide threading insert designed for cutting NPT and NPTF pipe threads. Manufactured to MT7 grade, it uses the H23 insert style and produces threads at 11.5 TPI, conforming to ANSI B1.20.1-1983 standards. This insert handles both external and internal threading operations, making it a versatile tool for shops that machine pipe fittings, connectors, and threaded ports. Carbide construction provides wear resistance and consistent thread form across production runs. Installed in compatible CNC lathes and threading toolholders, it is suited for machining environments where tight thread tolerances and repeatable fitment are required.

This insert is used in metal-cutting operations that require precise NPT or NPTF pipe thread profiles. It fits typical production and job-shop lathe setups handling external and internal thread forms on pipe ends and threaded bores. At 11.5 TPI, it targets the standard NPT thread pitch used across common pipe sizes in plumbing, HVAC, and industrial fluid systems. Machinists and toolroom technicians working with ferrous and non-ferrous pipe stock will find this insert applicable to standard threading cycles on CNC or manual toolholders.

Key Features

• Carbide insert material for extended tool life and consistent thread form
• MT7 manufacturer grade for defined cutting geometry and quality control
• H23 insert style compatible with standard H23-profile toolholders
• 11.5 TPI thread pitch conforming to ANSI B1.20.1-1983
• Cuts both external and internal NPT/NPTF thread forms
• Certified to ISO 9001:2015, ISO 14001:2015, ISO 45001, and ISO 13485:2016

Compatibility

Designed for use in H23-profile threading toolholders configured for NPT and NPTF pipe thread applications. Specific toolholder and machine compatibility should be verified against the H23 insert seat specification prior to installation.

Installation Notes

Threading inserts of this type are installed and indexed by qualified machinists or toolroom technicians. Power down and lock out the machine before changing or indexing inserts. Use the appropriate torque wrench and insert clamp hardware specified by the toolholder manufacturer - do not over-tighten the clamp screw. Verify thread form and pitch with a calibrated thread gauge after the first cut before committing to a production run.