Kennametal 1799394 Threading Insert 14 Tpi Carbide KC5025

Product Description

The KENNAMETAL 1799394 is a carbide threading insert designed for external thread cutting on UN-standard threads at 14 TPI. Carrying the KC5025 manufacturer grade, this insert features a PVD-applied TiAlN finish that resists heat and wear during high-speed threading operations. The included angle is 60 degrees, consistent with UN/UNC/UNF thread forms. With a tip-to-top height of 0.1480 inches and a corner radius of 0.0087 inches, it delivers precise thread profile geometry. This insert is part of the Top Notch series and is installed by machinists and tool-room technicians on CNC lathes and turning centers performing external threading passes.

This insert is suited for external threading applications on ferrous and non-ferrous materials where a UN thread form is required. The right-hand cutting orientation makes it appropriate for standard right-hand thread production on turned components. The KC5025 grade with TiAlN coating is commonly selected for threading at elevated surface speeds where thermal resistance and edge retention are priorities. It is sized as an Insert Size 3 Top Notch style insert, fitting compatible Top Notch toolholders. Sold individually per package with a minimum order quantity of 5 pieces.

Key Features

• KC5025 carbide grade with PVD TiAlN coating for wear and heat resistance
• 14 TPI external thread form, 60-degree included angle for UN thread standard
• Right-hand cutting orientation for standard thread direction
• Insert Size 3 Top Notch series for use in compatible Top Notch toolholders
• Tip-to-top height of 0.1480 inches with a 0.0087-inch corner radius for accurate thread geometry
• Material grades C2 and C6 coverage for broad workpiece material range

Compatibility

Designed as an OEM-style replacement threading insert for Top Notch series toolholders accepting Insert Size 3 NTC-style inserts. Specific toolholder compatibility should be confirmed against KENNAMETAL Top Notch toolholder documentation.

Installation Notes

Threading inserts should be installed by qualified machinists following the toolholder manufacturer's clamping torque guidelines and using appropriate insert seating tools. Ensure the toolholder pocket and locating surfaces are clean and free of chips before seating the insert. Power down and lock out the machine spindle before any insert change. Verify thread pitch and insert orientation against the workpiece thread specification before initiating the threading cycle.