Kennametal 1765641 Threading Insert 8 Tpi KC5010 Carbide

Product Description

The KENNAMETAL 1765641 is a carbide threading insert designed for external thread cutting on UN-standard threads at 8 TPI. Part of the Top Notch series, this right-hand insert carries a TiAlN finish applied via PVD coating, which improves wear resistance and tool life in demanding threading operations. The insert is manufactured to a KC5010 grade with a C3/C4 material classification. It measures 0.1949 inches thick with a tip-to-top height of 0.1071 inches and a corner radius of 0.0161 inches. These close tolerances make it suitable for consistent thread form on production runs. Machinists and CNC operators working with lathes and turning centers in metalworking shops are the primary users.

This insert is used for external threading of UN-standard fastener threads at 8 TPI, a common pitch for larger-diameter bolts and fittings in industrial and mechanical assembly. The 60-degree included angle conforms to the standard UN/UNC/UNF thread form. The Top Notch series mounting system provides rigid insert clamping in compatible Top Notch toolholders. It is well-suited for production threading in steel and alloy materials where TiAlN coating delivers thermal and abrasion resistance.

Key Features

• Carbide substrate with TiAlN finish via PVD coating for extended tool life
• 8 TPI external threading for UN-standard thread form
• 60-degree included angle matches UN/UNC/UNF thread geometry
• Right-hand cut configuration for standard lathe threading operations
• Top Notch series insert style for rigid, repeatable clamping in compatible holders
• Insert size 3 with tight dimensional tolerances for consistent thread accuracy

Compatibility

Designed for use in KENNAMETAL Top Notch series threading toolholders that accept NTC3 style inserts. Specific toolholder compatibility should be confirmed against KENNAMETAL Top Notch system toolholder documentation prior to ordering.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Power down and lock out the machine before seating or replacing the insert. Use the appropriate Top Notch clamp and torque the clamping screw per the toolholder manufacturer specifications. Inspect the insert seat and clamp for wear or debris before installation to ensure proper seating and thread form accuracy.