Kennametal 1799386 Threading Insert KC5025 11 Tpi

Product Description

The KENNAMETAL 1799386 is a carbide threading insert in the Top Notch series, designed for external UN thread forms at 11 TPI with a 60-degree included angle. The insert carries a KC5025 manufacturer grade with a TiAlN finish applied via PVD coating, delivering wear resistance suited to demanding threading operations on a range of workpiece materials rated at material grades C2 and C6. At 0.1949 inches thick with a corner radius of 0.0110 inches, this right-hand insert is sized for precision thread profiles in production and job-shop turning environments. Machinists and CNC lathe operators install this insert on compatible Top Notch toolholders.

This insert is intended for external threading applications on CNC lathes and manual turning centers. It produces UN-standard thread forms at 11 TPI, making it a common choice for fastener-thread and general mechanical-thread production in ferrous and non-ferrous machining. The NTC3R11E insert style and right-hand designation dictate toolholder and cartridge selection. It is sold individually and is appropriate for both production runs and short-run prototype work where consistent thread geometry and tool life are required.

Key Features

• KC5025 carbide grade with PVD-applied TiAlN coating for elevated wear and heat resistance
• 11 TPI external threading at a 60-degree included angle for UN thread standard compliance
• Right-hand cutting geometry - NTC3R11E insert style for Top Notch toolholder systems
• Corner radius of 0.0110 inches (0.28 mm) for accurate thread root form
• Insert thickness of 0.1949 inches (4.95 mm) providing rigid seating in the pocket
• Tip-to-top height of 0.1071 inches (2.72 mm) for consistent insert positioning

Compatibility

Designed for use with KENNAMETAL Top Notch series threading toolholders and cartridges that accept the NTC3 insert size in a right-hand configuration. Specific toolholder compatibility should be verified against KENNAMETAL Top Notch system documentation prior to ordering.

Installation Notes

Threading inserts of this type are installed and replaced by machinists or toolroom technicians on CNC or manual turning equipment. The machine spindle must be stopped and all motion arrested before changing inserts. Use the appropriate torx or hex key to the toolholder manufacturer's specified seating procedure - do not overtighten the clamp screw. Confirm insert orientation matches the right-hand thread direction before initiating a threading pass.