Kennametal 1160184 CNMG431P KC850 Turning Insert

Product Description

The KENNAMETAL 1160184 is a CNMG431P-style turning insert in the KC850 grade, designed for metal cutting on CNC lathes and turning centers. Built from solid carbide with a multilayer CVD coating — TiC, TiCN, and TiN — it delivers a balance of wear resistance and toughness suited to moderate to high-demand cutting conditions. The insert features an 80-degree diamond (rhombic) shape with a negative rake and negative side clearance, a 0.5 inch inscribed circle, and a 0.0156 inch (1/64 inch) corner radius. The KENLOC series designation indicates compatibility with Kennametal KENLOC-style toolholders. Four cutting edges are available per insert, reducing per-edge tooling cost in production environments. Cutting edge style is honed for consistent engagement.

The 1160184 is suited to turning, facing, and boring operations across a range of workpiece materials including steel, stainless steel, and cast iron (ISO material groups P, M, K, and S). The P chip breaker geometry is engineered for medium machining conditions — moderate feed rates and depths of cut up to 1.25 mm (0.0492 inch). This insert is a practical choice for job shops and production machinists running general-purpose steel and stainless turning programs. It is held in the toolholder by clamp or pin, per standard CNMG toolholder practice.

Key Features

• Multilayer CVD coating (TiC, TiCN, TiN) for wear resistance across steel and stainless applications
• 80-degree diamond insert shape (CNMG) with negative rake for stability in interrupted and continuous cuts
• Four usable cutting edges per insert for extended service life
• P chip breaker geometry optimized for medium machining — turning, facing, and boring
• Compatible with both clamp and pin insert-holding methods
• Meets ANSI and ISO standards; ANSI code CNMG431, ISO code CNMG120404

Compatibility

Designed for use in KENLOC-series and standard CNMG-style toolholders accepting a 0.5 inch inscribed circle, 3/16 inch thick, negative-rake CNMG insert. Suitable for primary workpiece materials steel and stainless steel (ISO P and M), with rated performance also in cast iron and special or super alloys (ISO K and S).

Installation Notes

Insert seating and clamping should be performed with the machine powered down and the spindle locked. Verify the toolholder pocket is clean and free of chips before seating; debris under the insert causes premature edge failure and runout. Use the appropriate torx or clamp screw torque per the toolholder manufacturer specification — do not over-torque. Index or replace the insert when flank wear reaches the threshold for your tolerance requirements rather than running to catastrophic failure.