Kennametal 7093821 Tpgt Carbide Turning Insert 1/4 Inch Ic

Product Description

The KENNAMETAL 7093821 is a TPGT-style triangular carbide turning insert designed for precision external and internal turning operations on CNC lathes and turning centers. Manufactured from carbide with an AlTiN (aluminum titanium nitride) coating and KENNAMETAL grade KCU10B, this insert delivers thermal resistance and edge stability at elevated cutting speeds. The neutral hand orientation and LF chip breaker geometry make it well suited for light finishing cuts where tight tolerances and fine surface finish are required. The inscribed circle measures 0.2500 inches (6.35 mm) and the corner radius is 0.0156 inches (0.40 mm), supporting close-tolerance finishing work in a wide range of workpiece materials.

This insert is intended for use in light-to-medium finishing applications on metalworking lathes and CNC turning centers in job shop, production, and maintenance environments. The TPGT style with a 60-degree included angle, 11-degree relief angle, and LF chip breaker geometry is particularly effective when machining non-ferrous metals, aluminum alloys, and other materials where a sharp, free-cutting edge reduces built-up edge and heat generation. Installation is handled by machinists and CNC operators in precision machining shops.

Key Features

• AlTiN coating over KCU10B carbide grade for thermal resistance and extended tool life in finishing cuts
• LF chip breaker geometry optimized for light finishing passes and tight surface finish requirements
• 60-degree included angle triangular (T) insert shape provides three usable cutting edges
• 11-degree relief angle (clearance code P) reduces flank friction and supports sharp-edge engagement
• Neutral insert hand allows use in both right-hand and left-hand toolholders
• Corner radius of 0.0156 inches (0.40 mm) supports fine surface finish and close-tolerance work

Compatibility

Designed as an OEM-style replacement turning insert for TPGT-style toolholders accepting a triangular insert with a 0.2500-inch inscribed circle, 3/32-inch thickness, and G tolerance fitting.

Installation Notes

Turning inserts of this style are seated and clamped by a machinist or CNC operator following the toolholder manufacturer's clamping procedure. Power down and lock out the machine spindle before indexing or replacing any insert. Use appropriate insert-handling tools to avoid contact with cutting edges. Verify seating and clamp torque per the toolholder specification before resuming cutting operations.