Kennametal 1160160 Round Turning Insert KC850 RNMG43

Product Description

The KENNAMETAL 1160160 is a round solid carbide turning insert in the KENLOC series, designed for general-purpose metal cutting on CNC and manual lathes. It carries the ANSI designation RNMG43 and ISO designation RNMG120400. The insert features a multilayer CVD coating of TiC, TiCN, and TiN, placing it in the KC850 grade — engineered to balance wear resistance and toughness across a broad range of workpiece materials. With a 0.5 inch inscribed circle, a 0.25 inch corner radius, and a full 360-degree round profile, it is suited for medium machining chip-breaker conditions. Licensed machinists, CNC operators, and toolroom technicians install this insert into KENLOC-compatible toolholders.

This insert is intended for turning, facing, and boring operations on steel, stainless steel, and cast iron, with secondary suitability for special and super alloys. The round shape provides eight usable cutting edges per insert, making it a cost-efficient option for shops running moderate-to-high production volumes. The neutral hand designation means it performs in both left-hand and right-hand toolholder orientations. Typical applications include finish and semi-finish passes where a consistent corner radius and tight tolerances are required. The KC850 grade is particularly well-suited for interrupted cuts and conditions where edge toughness is as important as surface finish.

Key Features

• Round insert shape (RNMG) delivers 8 cutting edges per insert, maximizing tool life value
• KC850 multilayer CVD coating (TiC, TiCN, TiN) provides moderate wear resistance and high toughness across steel, stainless, and cast iron
• 0.5 inch inscribed circle with full radius geometry supports turning, facing, and boring in a single insert style
• Maximum depth of cut of 0.0492 inches (1.25 mm) for controlled semi-finish and finish passes
• Negative rake and negative side clearance geometry for stable, chatter-resistant cutting action
• Clamp and pin holding method compatible with KENLOC toolholder system
• Chamfered and honed cutting edge prep for consistent edge engagement and reduced microchipping

Compatibility

Designed for use with KENLOC-series toolholders accepting RNMG43 round inserts. Compatible across turning, facing, and boring applications in steel (P), stainless steel (M), cast iron (K), and special or super alloy (S) workpieces. Meets ANSI and ISO insert standards.

Installation Notes

Installation is performed by qualified machinists or CNC toolroom technicians. Power down and lock out the machine spindle before seating or indexing the insert. Secure the insert using the appropriate KENLOC clamp and pin hardware torqued to the toolholder manufacturer specification. Inspect the insert pocket and seating surface for chips or debris before each index to ensure correct seating and edge height repeatability.