Kennametal 1796109 Threading Insert NTP4R KC5010 Carbide

Product Description

The KENNAMETAL 1796109 is a carbide threading insert in the NTP4R style, designed for cutting both internal and external threads on a wide range of pitch sizes. Finished with a PVD-applied TiAlN coating and manufactured to the KC5010 grade, this insert delivers hard, wear-resistant cutting performance suited to ferrous and non-ferrous materials in the C3 and C4 material grade range. The partial profile 60-degree thread form covers external pitches from 1.25 to 6.25 mm (4 to 20 TPI) and internal pitches from 2.00 to 6.25 mm (4 to 12 TPI). It is part of the Kennametal Top Notch series and is installed and replaced by machinists and CNC tooling technicians in production threading operations.

This insert is suited to threading applications on lathes, turning centers, and CNC threading equipment where right-hand thread geometry is required. The NTP style seats into compatible Top Notch toolholders. Its broad pitch coverage makes it a practical choice for shops that thread a variety of fastener and fitting sizes in a single tool setup, reducing the need to index multiple inserts across common thread standards.

Key Features

• PVD TiAlN coating provides thermal resistance and extended edge life in continuous threading cuts
• Partial profile 60-degree geometry cuts both internal and external threads without a full-form tip, accommodating a wide TPI range
• External pitch coverage: 1.25 to 6.25 mm (4 to 20 TPI)
• Internal pitch coverage: 2.00 to 6.25 mm (4 to 12 TPI)
• Right-hand insert orientation for standard threading direction
• Top Notch series seating for positive, repeatable insert location in compatible toolholders

Compatibility

Designed for use with Kennametal Top Notch series threading toolholders that accept NTP-style inserts. Confirm toolholder compatibility by insert style and insert size 4 designation before ordering.

Installation Notes

Threading insert replacement should be performed with the machine powered down and the spindle fully stopped. Use the appropriate torque wrench and Top Notch clamping hardware specified for the toolholder to seat the insert correctly - do not over-tighten the clamping screw by hand. Inspect the insert pocket for chips or debris before seating a new insert. Follow the toolholder manufacturer's indexing procedure to ensure the cutting edge is properly oriented before resuming operation.