Kennametal 1161147 CNMP432 K68 Carbide Turning Insert

Product Description

The KENNAMETAL 1161147 is a solid carbide, uncoated turning insert with ANSI designation CNMP432 and ISO designation CNMP120408. It belongs to the KENLOC series and features an 80-degree diamond (rhombic) insert shape with a neutral hand orientation. The insert has a 0.5 inch inscribed circle, a 0.1875 inch thickness, and a 0.0313 inch corner radius. Grade K68 delivers high wear resistance to moderate wear resistance and toughness across stainless steel, cast iron, and aluminum and non-ferrous material groups. With 4 cutting edges, negative rake, and a honed cutting edge style, this insert suits medium machining chip breaker operations in turning, facing, and boring applications.

This insert is intended for use by machinists and toolroom professionals running CNC lathes and turning centers in industrial and production environments. It targets non-ferrous metals, superalloys, and titanium as primary workpiece materials, and also covers stainless steel and cast iron applications. The CNMP432 insert style with negative side clearance and a clamp-and-pin holding method suits toolholders designed around the KENLOC clamping system. It is suited for both light finishing passes and medium-depth roughing cuts, with a maximum depth of cut of 0.0492 inch (1.25 mm).

Key Features

• Solid carbide construction, K68 grade — high wear resistance across M, K, and N workpiece material groups
• 80-degree diamond (rhombic) insert shape for versatile turning, facing, and boring operations
• 4 cutting edges with honed edge style and negative rake geometry
• Uncoated bright finish — no coating delamination risk in non-ferrous and superalloy applications
• Medium machining chip breaker configuration for consistent chip control at moderate feed rates
• Clamp and pin insert holding method compatible with KENLOC series toolholders

Compatibility

Designed for use with KENLOC series toolholders accepting CNMP432 inserts with clamp and pin holding. ANSI size code 432, ISO size code 120408. Suitable for multi-use turning, facing, and boring applications on non-ferrous metals, superalloys, titanium, stainless steel, and cast iron.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. The machine spindle must be fully stopped and locked out before seating or indexing the insert. Use the appropriate KENLOC clamp and pin hardware to secure the insert; do not overtighten the clamp screw without following the toolholder manufacturer torque guidance. Inspect the insert pocket and pin locator for chips or debris before seating a new edge.