Kennametal 1112924 Threading Insert 24 Tpi Carbide KC730

Product Description

The KENNAMETAL 1112924 is a carbide threading insert designed for external thread cutting operations. Carrying the NJF3007R24 style designation, it operates in the Top Notch series and is finished with a Titanium Nitride (TiN) coating applied via PVD process. The insert is ground to a 24 TPI pitch with a 60-degree included angle and a right-hand cutting orientation. Manufactured to KC730 grade carbide, it targets materials classified under grades C2, C3, and C4. The tip-to-top dimension measures 0.1409 inches and overall thickness is 0.1949 inches, making it a compact, precision-ground insert suited for controlled threading applications on CNC lathes and turning centers.

This insert is intended for external UNJ thread profiles, which are commonly specified in aerospace, defense, and high-strength fastener applications where root radius requirements are critical. It is suited for use on CNC lathes, engine lathes, and multi-axis turning centers where the Top Notch toolholder system is in use. Machinists and CNC operators working with steel and alloy materials in the C2 through C4 hardness range will find this insert appropriate for production and precision threading work. The PVD TiN coating supports extended tool life at moderate cutting speeds.

Key Features

• KC730 carbide grade with PVD-applied Titanium Nitride coating for wear resistance
• 24 TPI external thread pitch ground to UNJ thread standard
• 60-degree included angle with right-hand cutting orientation
• Corner radius of 0.0068 inches (0.17 mm) for controlled root form
• Top Notch series insert size 3007 for compatibility with corresponding toolholders
• Material grades C2, C3, and C4 — suited for steel and alloy threading

Compatibility

Designed for use with Top Notch series toolholders accepting size 3007 inserts. Specific toolholder model compatibility should be confirmed against the Top Notch system documentation prior to installation.

Installation Notes

This insert is installed by qualified machinists or CNC operators. Power down and lock out the machine before changing inserts. Seat the insert fully and evenly in the Top Notch pocket and verify clamping force is correct before resuming cutting. Do not use damaged or chipped inserts, as improper seating can result in insert fracture or thread-form error.