Kennametal 1796118 Threading Insert NT3LK KC5010 Carbide

Product Description

The KENNAMETAL 1796118 is a carbide threading insert designed for both internal and external thread cutting operations. Featuring the NT3LK geometry with a KC5010 grade and PVD-applied TiAlN finish, this insert handles partial profile 60-degree thread forms on a wide range of pitches. The left-hand configuration supports applications where conventional right-hand tooling is not suitable. It fits within the Top Notch series insert system and is intended for use by machinists and tooling technicians in production or job-shop environments. The corner radius measures 0.17 mm (0.0067 inches), and the insert thickness is 4.95 mm (0.1949 inches).

This insert is suited for threading operations on lathes and turning centers where both metric and imperial thread standards are required. The external pitch range covers 1.25 to 4.00 mm and 6 to 20 TPI, while the internal pitch range covers 2.00 to 5.00 mm and 5 to 12 TPI. It is a strong fit for shops working with steels and harder alloys where a wear-resistant PVD coating is preferred. The Top Notch series toolholder system is required for proper seating and clamping of this insert.

Key Features

• Carbide substrate with PVD-applied TiAlN finish for improved wear resistance and heat tolerance
• Partial profile 60-degree thread form covers a broad range of inch and metric pitches in one insert
• Left-hand insert orientation for specialized threading setups
• K chipbreaker geometry for controlled chip formation during threading passes
• Insert size 3 in the Top Notch series for consistent toolholder compatibility
• Handles both internal and external threading operations

Compatibility

Designed for use with Top Notch series threading toolholders that accept size 3 NT-style inserts. Confirm toolholder designation against KENNAMETAL Top Notch series tooling catalogs before ordering.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Power down and lock out the machine spindle before seating or removing the insert. Use the correct torque wrench and seating screw specified by the toolholder manufacturer - do not over-torque the clamping screw, as carbide inserts are brittle and may crack under excessive clamping force. Inspect the toolholder pocket for wear or debris before seating the new insert.