Kennametal 4175912 Threading Insert NT2RK KCU10 Carbide

Product Description

The KENNAMETAL 4175912 is a carbide threading insert in the Top Notch series, designed for both internal and external thread cutting operations. It carries a KCU10 manufacturer grade and features an AlTiN finish applied via PVD coating process. The insert uses a partial profile 60-degree thread standard with a right-hand orientation. External pitch range covers 0.70 to 3.00 mm (8 to 36 TPI), while internal pitch range covers 1.25 to 3.50 mm (7 to 20 TPI). Machining professionals and CNC tooling technicians use this insert for precision threading on lathes and turning centers across a range of thread forms.

This insert is suited for threading operations in production machining environments where consistent thread form and tool life are critical. The 60-degree included angle makes it compatible with common unified and metric thread profiles. The K chipbreaker geometry supports controlled chip evacuation in both internal and external threading passes. It is appropriate for use in light-to-medium duty threading applications on metallic workpieces where PVD AlTiN coating provides thermal resistance and surface hardness benefits.

Key Features

• Carbide substrate with AlTiN finish for thermal resistance and extended tool life
• PVD coating process for precise edge geometry retention
• External pitch range: 0.70 to 3.00 mm (8 to 36 TPI)
• Internal pitch range: 1.25 to 3.50 mm (7 to 20 TPI)
• Partial profile 60-degree thread standard for unified and metric thread compatibility
• K chipbreaker design for controlled chip flow during threading passes
• Right-hand insert orientation, NT style, Insert Size 2

Compatibility

Designed for use with Top Notch series threading toolholders that accept NT style Size 2 inserts. Verify toolholder compatibility with NT2RK insert style before installation.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before seating or removing the insert. Use the appropriate torque wrench and insert clamp hardware specified by the toolholder manufacturer — do not overtighten the clamping screw. Inspect the insert seat and clamping surfaces for debris or damage before each insert change.