Kennametal 5653377 CNMG432A-3J Turning Insert 0.5in Ic

Product Description

The KENNAMETAL 5653377 is a solid carbide turning insert designed for precision metal cutting in CNC and manual lathe applications. It carries the ANSI insert code CNMG432 and ISO insert code CNMG120408, featuring an 80-degree diamond (rhombic) shape with a negative side clearance geometry. The inscribed circle measures 0.5 inches, the corner radius is 0.031 inches, and the insert thickness is 0.187 inches. Grade NL300 carbide construction and a 3J chip breaker geometry make this insert suited for controlled-chip turning operations. Licensed machinists and CNC operators install this insert as part of a standard clamp-and-pin toolholding setup.

This insert is applied in turning operations on CNC lathes and manual turning centers where an 80-degree diamond insert is required. The CNMG style with negative rake geometry is commonly used for external and internal turning of ferrous and non-ferrous metals. The 3J chip breaker is engineered for medium to finishing depth-of-cut ranges, making it appropriate for tight-tolerance work on production and job-shop floors alike. The Tolerance Code M and Clearance Code N define the dimensional fit class for this insert within standard CNMG-compatible toolholders.

Key Features

• ANSI insert code CNMG432, ISO insert code CNMG120408 for broad toolholder compatibility
• 80-degree diamond (rhombic) insert shape provides a strong cutting edge geometry
• Negative side clearance with 0-degree relief angle suits heavy and interrupted cuts
• 3J chip breaker geometry supports medium to finishing turning passes
• NL300 solid carbide grade for wear resistance in metal turning
• Clamp and pin holding method compatible with standard CNMG toolholders

Compatibility

Designed as an OEM-style replacement turning insert for use in standard CNMG432-compatible clamp-and-pin toolholders. ISO equivalent code CNMG120408 and ISO code SNMM190612RH are noted in the manufacturer specifications.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before changing inserts. Seat the insert fully against the toolholder pocket and pocket stop before tightening the clamp; uneven seating can cause premature edge failure or chatter. Refer to the toolholder manufacturer torque specification for the clamp screw - do not over-tighten.