Kennametal 1112960 Threading Insert 32 Tpi KC730 Carbide

Product Description

The KENNAMETAL 1112960 is a carbide threading insert designed for external thread cutting on UNJ-standard threads at 32 TPI. It carries a Titanium Nitride (TiN) finish applied via PVD coating, which improves surface hardness and wear resistance during high-speed threading operations. The insert style is NJF with a right-hand cutting orientation and a 60-degree included angle, making it suited for precision threading in aerospace and industrial machining environments. At 0.1949 inches thick and with a corner radius of 0.0059 inches, this insert holds tight geometry for consistent thread form. It is part of the Top Notch series, which uses a secure top-clamping system for repeatable insert indexing.

This insert is intended for CNC lathes and turning centers performing external UNJ threading passes on ferrous and non-ferrous materials. The KC730 grade is classified as material grade C2, C3, and C4, covering a broad range of steel and cast iron applications. Machinists and tool-room technicians working in production threading of aerospace fastener profiles and precision shafts will find this insert appropriate. It is sold individually but requires a minimum order of 5 units per purchase.

Key Features

• Carbide substrate with PVD-applied Titanium Nitride coating for extended tool life
• 32 TPI external thread pitch for UNJ thread standard
• 60-degree included angle for standard unified thread form geometry
• Right-hand cutting orientation, NJF insert style
• Corner radius of 0.0059 inches for controlled thread root profile
• Part of the Top Notch series for secure top-clamp toolholding

Compatibility

Designed for use in Top Notch series toolholders accepting NJF3005 insert size for external UNJ threading applications. Verify toolholder compatibility with the NJF insert style and 3005 insert size before ordering.

Installation Notes

Installation is performed by qualified machinists following the toolholder manufacturer's clamping torque and seating procedures for Top Notch style inserts. Power down and lock out the machine spindle before indexing or replacing inserts. Inspect the insert pocket and clamping screw for wear or debris before seating the new insert. Do not use damaged or chipped inserts, as thread form accuracy depends on intact cutting geometry.