Kennametal 1113500 Threading Insert NTF3L K68 Carbide

Product Description

The KENNAMETAL 1113500 is a carbide threading insert designed for both internal and external thread cutting operations. Part of the Top Notch series, this insert features the NTF3L style in an uncoated K68 carbide grade, suited for precise partial profile 60-degree thread forms. It covers an external pitch range of 0.60 to 2.50 mm (10 to 44 TPI) and an internal pitch range of 1.00 to 2.50 mm (9 to 24 TPI). The left-hand orientation and compact Insert Size 3 geometry make it a reliable choice for machinists running threading operations on CNC lathes and manual turning equipment.

This insert is intended for use in threading applications where a partial profile 60-degree included angle is required on both internal and external threads. It is well suited for production machining environments handling metric and unified thread forms across a wide pitch range. The uncoated bright finish of the K68 carbide grade makes it appropriate for applications where coating interference or edge sharpness is a factor. A licensed machinist or tooling technician typically installs and indexes this insert in compatible Top Notch series toolholders.

Key Features

• K68 uncoated carbide grade with bright finish for sharp, consistent cutting edges
• Partial profile 60-degree thread form handles both internal and external threading
• External pitch range: 0.60 to 2.50 mm (10 to 44 TPI)
• Internal pitch range: 1.00 to 2.50 mm (9 to 24 TPI)
• Left-hand insert orientation for specific threading directions
• Part of the Top Notch series for compatibility with dedicated toolholding systems

Compatibility

Designed for use with Top Notch series threading toolholders that accept Insert Size 3 NTF-style inserts. Consult toolholder documentation to confirm seat and clamping compatibility before installation.

Installation Notes

Insert indexing and replacement should be performed by a qualified machinist or tooling technician. Power down and lock out the machine before handling inserts or adjusting the toolholder. Use appropriate insert seating tools and torque wrenches as specified by the toolholder manufacturer. Inspect the toolholder seat for chips or debris before seating the new insert to ensure proper contact and edge alignment.