Kennametal 4050686 Cnmg 432MP KCU10 Turning Insert

Product Description

The KENNAMETAL 4050686 is a CNMG 432MP indexable turning insert manufactured from solid carbide and finished with a TiAlN coating applied via PVD process. It carries the KCU10 manufacturer grade and belongs to the KENLOC series. The insert features an 80-degree diamond shape, a 0.5 inch inscribed circle, and a 1/32 inch (0.0313 inch) corner radius. With a negative rake geometry and chamfered plus honed cutting edge, this insert is designed for stable, controlled cutting in demanding turning, facing, and boring operations. Typical users are machinists and CNC operators working in production or job-shop environments.

This insert is suited for use on CNC lathes and turning centers in both roughing and finishing passes. Its primary workpiece material designations are P (steel), M (stainless steel), and S (superalloys and titanium), making it applicable across a wide range of industrial metalcutting work. The MP chip breaker geometry is optimized for medium-pass cutting where chip control and edge stability are both priorities. The insert accepts clamp and pin holding methods and delivers four usable cutting edges per insert, maximizing cost-per-edge efficiency in production settings.

Key Features

• TiAlN coating via PVD process for heat resistance and extended tool life on steel and stainless
• 80-degree diamond insert shape (CNMG) with negative rake for strong edge support
• MP chip breaker geometry suited for medium turning, facing, and boring passes
• Four cutting edges per insert with neutral hand orientation
• Chamfered and honed cutting edge style for improved edge stability and reduced chipping
• Meets ANSI and ISO industry standards

Compatibility

Designed for use in CNMG 432-compatible toolholders that accept clamp and pin insert holding methods within the KENLOC series. Verify toolholder pocket geometry matches CNMG insert shape, 0.5 inch inscribed circle, and 3/16 inch insert thickness before installation.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine before indexing or replacing inserts. Use the appropriate torque wrench and clamp hardware specified by the toolholder manufacturer when securing the insert. Inspect the pocket seat for wear or debris before seating a fresh edge, as a dirty or damaged pocket will shorten insert life and affect dimensional accuracy.