Kennametal 1114380 Threading Insert 28 Tpi KC730 Carbide

Product Description

The KENNAMETAL 1114380 is a carbide threading insert designed for external thread cutting applications. It carries the NJK3006R28 insert designation and is manufactured in the KC730 grade with a Titanium Nitride (TiN) finish applied via PVD coating. This insert cuts right-hand external threads at 28 TPI to the UNJ thread standard with a 60-degree included angle. It belongs to the Kennametal Top Notch series and is sized at 3006. The insert measures 0.1949 inches thick and has a tip-to-top height of 0.1409 inches, with a corner radius of 0.0059 inches. Machinists and CNC programmers use this insert in turning centers for precision threaded components.

This insert is suited for external threading operations on materials falling within the C2, C3, and C4 material grade classifications, which generally correspond to cast iron, non-ferrous metals, and heat-resistant alloys. The UNJ thread form designation makes it appropriate for aerospace and high-strength fastener applications where root radius control is required. The Top Notch toolholder system provides positive insert retention, making it a common choice in production turning environments. Installation requires a compatible Top Notch threading toolholder that accepts the NJK 3006 insert style.

Key Features

• KC730 carbide grade with PVD-applied Titanium Nitride coating for wear resistance
• 28 TPI external thread pitch to UNJ thread standard
• 60-degree included angle for standard UNJ thread form
• Right-hand cutting geometry, insert style NJK
• Top Notch series insert with 3006 size designation
• Corner radius of 0.0059 inches for controlled thread root form

Compatibility

Designed for use with Kennametal Top Notch threading toolholders that accept the NJK 3006 insert style. Suitable for C2, C3, and C4 material grade workpieces per the manufacturer designation.

Installation Notes

This insert is installed and replaced by a qualified machinist or tooling technician. Always power down and lock out the machine before changing inserts. Use the correct torque wrench and clamping hardware specified for the Top Notch toolholder to seat the insert properly. Inspect the toolholder pocket for wear or debris before seating a new insert.