Kennametal 1183311 TPG222 KC850 Carbide Turning Insert

Product Description

The KENNAMETAL 1183311 is a solid carbide turning insert designed for external and internal material removal on CNC and manual lathes. It carries the ANSI code TPG222 and ISO code TPG110308, placing it in the KENDEX series. The insert features a multilayer CVD coating of TiC, TiCN, and TiN in the KC850 grade, which delivers moderate wear resistance with toughness suitable for interrupted and continuous cuts. The triangular insert shape provides 3 cutting edges, the flat-top chip breaker geometry produces a positive rake, and the honed cutting edge style reduces microchipping. Insert length is 11 mm (0.4331 inches) with a 0.25-inch inscribed circle and a 0.0313-inch corner radius.

This insert is suited for turning, facing, and boring operations on steel, stainless steel, and cast iron workpieces as well as select special and super alloys (ISO material codes P, M, K, S). It is held by clamp-style toolholders that accept TPG-style inserts. Typical applications include moderate to high material removal rates where both wear resistance and edge toughness are required. The flat-top chip breaker geometry is well matched to general-purpose finish and semi-finish turning passes at light to moderate depths of cut up to 0.0492 inches (1.25 mm).

Key Features

• CVD multilayer TiC, TiCN, TiN coating in KC850 grade for balanced wear resistance and toughness
• Triangular insert shape with 3 usable cutting edges reduces per-edge tooling cost
• Positive rake angle and honed cutting edge minimize cutting forces and edge microchipping
• Flat-top chip breaker geometry supports turning, facing, and boring in a single insert style
• Clamp-style insert holding compatible with standard TPG toolholders
• Meets ANSI and ISO standards; ANSI size code 222, ISO size code 110308

Compatibility

Designed as a direct-fit replacement for TPG222 style clamp-held toolholders in the KENDEX series. Compatible with steel (P), stainless steel (M), cast iron (K), and special or super alloy (S) workpiece materials as noted in the KC850 grade characteristics.

Installation Notes

Installation of turning inserts should be performed by a qualified machinist or CNC operator with the machine powered down and the spindle fully stopped before indexing or replacing the insert. Use the correct clamp screw and torx key specified by the toolholder manufacturer to secure the insert; a loose clamp will cause insert movement and workpiece damage. Inspect the insert seat and shim for debris or wear before seating a new insert. Follow the toolholder manufacturer's speeds and feeds documentation for the KC850 grade when setting initial cutting parameters.