Kennametal 1160849 Turning Insert DNGG430.5LF KC730

Product Description

The KENNAMETAL 1160849 is a solid carbide turning insert in the KENLOC series, designed for precision metal-cutting operations on CNC lathes and turning centers. Conforming to ANSI insert code DNGG430.5 and ISO code DNGG150402, this insert features a 55-degree diamond (rhombic) shape with a TiN coating applied via PVD process. The KC730 grade delivers high to moderate wear resistance across steel, stainless steel, and cast iron workpiece materials. The LF chip breaker geometry is optimized for finishing and light machining passes, producing controlled chip formation at shallow depths of cut. With a 0.5-inch inscribed circle and a 0.0079-inch corner radius, this insert is built for tight-tolerance surface finishing work where dimensional accuracy matters.

This insert is suited for turning, facing, boring, back turning, and back boring operations on steel, stainless steel, superalloys, and titanium. The DNGG style with negative rake and negative side clearance suits applications where a rigid, stable cutting edge is required. The LF chip breaker targets finishing and light roughing scenarios where surface finish and close tolerances are the priority. The KC730 PVD-TiN grade is particularly effective in ISO P (steel), M (stainless steel), and K (cast iron) material groups, and extends into M and S secondary material classifications covering stainless steel and superalloys. The insert is held by clamp or pin methods and offers 4 usable cutting edges, making it an efficient choice for high-volume production turning environments.

Key Features

• ANSI code DNGG430.5 / ISO code DNGG150402 for standardized toolholder compatibility
• KC730 grade with PVD TiN coating for high wear resistance on steel, stainless steel, and cast iron
• 55-degree diamond insert shape with negative rake angle (10 degrees) for stable, rigid cutting
• LF chip breaker geometry optimized for finishing and light machining operations
• 4 cutting edges per insert for extended tool life and lower cost per edge
• Maximum depth of cut 0.0492 inches (1.25 mm) suited to light, precision passes
• Compatible with clamp and pin insert-holding methods in KENLOC series toolholders

Compatibility

Designed for use in KENLOC series toolholders accepting DNGG-style inserts with a 0.5-inch inscribed circle. Conforms to ANSI and ISO insert standards for broad toolholder compatibility. Verify toolholder pocket geometry and insert-holding method before substitution.

Installation Notes

Installation is performed by a machinist or CNC tooling technician. Power down and lock out the machine spindle before changing inserts. Seat the insert fully into the pocket and secure with the appropriate clamp or retention pin torqued to the toolholder manufacturer specification. Inspect the cutting edge and chip breaker for damage before resuming cuts; do not use a chipped or cracked insert.