Kennametal 6770558 Ceramic Turning Insert CNGA432T0420

Product Description

The KENNAMETAL 6770558 is a ceramic turning insert with an AlTiN coating applied by PVD process, manufactured in the CNGA style and sold under the KENLOC series. The insert features a diamond shape with an 80-degree included angle, a neutral hand orientation, and a T-Land cutting edge style with a flat top chip breaker. It measures 0.5077 inches in length with a 0.5000-inch inscribed circle and a 0.0313-inch corner radius. Rated for use across turning, facing, and boring operations, this insert is used by machinists and tooling technicians working with demanding materials in production environments.

This insert is designed for machining cast iron, superalloys, titanium, and hard materials, corresponding to ISO material codes K, S, and H. It is suited for applications where ceramic cutting geometry and PVD-coated AlTiN surfaces are required to maintain edge integrity at elevated cutting temperatures. The flat top chip breaker geometry and T-Land edge preparation make it appropriate for continuous or light interrupted cuts on difficult workpiece materials. The insert accepts clamp and pin holding methods and is compatible with standard CNGA-style toolholders.

Key Features

• Ceramic insert material with AlTiN coating applied via PVD process for thermal resistance
• Diamond insert shape with 80-degree included angle and negative rake angle for edge strength
• T-Land cutting edge with flat top chip breaker for controlled chip formation on hard materials
• Neutral hand orientation supports use in both right-hand and left-hand toolholder setups
• Four cutting edges per insert for extended tool life and cost efficiency per edge
• Meets ANSI and ISO standards; ISO code CNGA120408T01020, industry standard number CNGA432T0420

Compatibility

Designed for use in CNGA-style toolholders that accept clamp and pin insert holding. Suitable for turning, facing, and boring operations on cast iron, superalloys, titanium, and hard materials. Compatible with standard CNGA 432 pocket geometry toolholders per ANSI and ISO specifications.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Power down and lock out the machine spindle before seating or removing inserts. Ensure the toolholder pocket and seating surface are clean and free of chips before clamping. Do not exceed the maximum depth of cut of 0.1691 inches for this insert geometry.