Kennametal 1162734 TPU321 K68 Carbide Turning Insert

Product Description

The KENNAMETAL 1162734 is a solid carbide, uncoated turning insert in the KENDEX series, designed for precision metal-cutting operations on CNC and manual lathes. Conforming to ANSI insert code TPU321 and ISO insert code TPU160304, this insert features a triangular shape with a 60-degree included angle, a positive rake angle, and a positive side clearance. The inscribed circle measures 0.375 inches and the corner radius is 0.0156 inches. The flat-top chip breaker geometry and honed cutting edge style make this insert well suited to finishing and semi-finishing passes on non-ferrous metals, stainless steel, cast iron, and superalloys. It weighs approximately 0.0123 pounds per insert.

This insert is primarily applied in turning, facing, and boring operations where high wear resistance is the priority. The K68 uncoated carbide grade delivers high wear resistance with moderate toughness, making it a strong choice for machining non-ferrous metals, aluminum, cast iron, and stainless steel. It carries ISO material application codes P, M, K, N, and S, covering a broad range of workpiece materials including superalloys and titanium. Three usable cutting edges per insert maximize tool life between index cycles. Sold individually with a minimum order quantity of 5 units.

Key Features

• ANSI code TPU321 / ISO code TPU160304 for standardized toolholder compatibility
• K68 uncoated solid carbide grade — high wear resistance suited to non-ferrous, cast iron, and stainless steel
• Triangular insert shape with 60-degree included angle and 11-degree relief angle
• Three cutting edges per insert with honed edge preparation for consistent finish quality
• Flat-top chip breaker geometry supports turning, facing, and boring applications
• Positive rake and positive side clearance reduce cutting forces on the workpiece

Compatibility

Designed for use in KENDEX series toolholders accepting TPU321 inserts with clamp-style insert retention. Conforms to ANSI and ISO insert standards for broad toolholder fitment.

Installation Notes

Indexable carbide inserts should be seated and clamped by a qualified machinist or tooling technician following the toolholder manufacturer's clamping torque procedure. Power down and lock out the machine before indexing or replacing inserts. Inspect the insert pocket and clamp hardware for wear or debris before seating a new insert. Handle carbide inserts carefully — edges are brittle and can chip if dropped or impacted.