Kennametal 1183266 TPG433 K68 Carbide Turning Insert

Product Description

The KENNAMETAL 1183266 is a solid carbide, uncoated turning insert in the TPG433 geometry, part of the KENDEX series. Designed for single-point turning operations, this triangular insert features a positive rake angle, 11-degree relief angle, and a flat-top chip breaker configuration. With a 0.5-inch inscribed circle, a 3/64-inch corner radius, and three usable cutting edges, it is suited for high-wear-resistance applications across a range of workpiece materials. Installation is performed by licensed machinists and toolroom technicians using standard clamp-style insert toolholders.

This insert is rated for primary use on non-ferrous metals, superalloys, and titanium, and carries K68 grade characteristics covering stainless steel (M), cast iron (K), and aluminum and non-ferrous (N) material groups at high to moderate wear-resistance and toughness levels. The flat-top, positive-rake design supports turning, facing, and boring operations. It conforms to both ANSI and ISO standards, with ANSI code TPG433 and ISO code TPG220412, making it straightforward to cross-reference against existing toolholder setups.

Key Features

• Solid carbide construction, uncoated (bright finish) for non-ferrous and superalloy cutting
• Triangular insert shape with 60-degree included angle and three cutting edges
• Positive rake and positive side clearance for reduced cutting forces
• Flat-top chip breaker with honed cutting edge style
• Clamp-style insert holding method compatible with standard TPG toolholders
• Dual standard compliance: ANSI TPG433 and ISO TPG220412

Compatibility

Designed for use in clamp-style toolholders accepting TPG433 (ANSI) or TPG220412 (ISO) inserts. Suitable for turning, facing, and boring applications on non-ferrous metals, superalloys, and titanium workpieces. Multi-use tool rated for all three operations per manufacturer specifications.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Always power down and lock out the machine spindle before changing inserts. Seat the insert fully against the toolholder pocket and tighten the clamp to the toolholder manufacturer's specified torque using the appropriate torx or hex key. Inspect the cutting edge and insert seat for chips or debris before engaging the workpiece.