Kennametal 1612950 Turning Insert DNMG431FN KT315

Product Description

The KENNAMETAL 1612950 is a DNMG431FN cermet turning insert in the KENLOC series, finished with a multilayer PVD TiN/TiCN/TiN coating and graded KT315. The insert features a 55-degree diamond (rhombic) shape, a 0.5 inch inscribed circle, and a corner radius of 0.0156 inches (1/64 inch). Insert length is 15.5 mm (0.611 inches), thickness is 3/16 inch, and the FN chip breaker geometry is optimized for finishing operations. With four cutting edges and a negative rake/negative relief (0-degree relief) configuration, this insert delivers high wear resistance across steel, stainless steel, and cast iron workpiece materials. It is installed by licensed machinists and CNC operators on indexable turning toolholders.

This insert is suited for general turning, facing, boring, back turning, and back boring applications. The KT315 cermet grade with PVD multilayer coating targets finishing passes on steel (P), stainless steel (M), and cast iron (K) materials where high wear resistance and consistent surface finish are the priorities. The FN chip breaker geometry manages chip formation effectively at light depths of cut, with a maximum depth of cut of 1.25 mm (0.0492 inches). The KENLOC series is a standard indexable insert platform used widely in production turning environments.

Key Features

• KT315 cermet grade with PVD multilayer TiN/TiCN/TiN coating for high wear resistance
• 55-degree diamond (DNMG) insert shape with FN finishing chip breaker geometry
• Four usable cutting edges per insert for extended tool life per unit
• Negative rake, 0-degree relief angle; compatible with clamp or pin insert holding methods
• Maximum depth of cut 1.25 mm (0.0492 inches) - optimized for light finishing passes
• Conforms to ANSI (DNMG431) and ISO (DNMG150404) insert standards
• Multi-use application: turning, facing, boring, back turning, and back boring

Compatibility

Designed for indexable turning toolholders that accept DNMG431 (ANSI) or DNMG150404 (ISO) inserts with clamp or pin holding methods. Minimum order quantity is 10 inserts; each package contains 1 insert.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Seat the insert fully against the pocket and verify the clamp or pin is secured before resuming operation. Do not exceed the rated maximum depth of cut for this insert geometry.