Kennametal 3608047 Turning Insert CNGA643T0820 KY4300

Product Description

The KENNAMETAL 3608047 is a ceramic turning insert designed for high-speed material removal on superalloys and titanium. It carries the industry standard designation CNGA643T0820 and belongs to the KENLOC series. The insert features a whiskered ceramic substrate (alumina SiC) in an uncoated, bright finish and is ground to a diamond 80-degree shape with a T-land cutting edge and flat-top chip breaker geometry. With a 3/4-inch inscribed circle, a 1/4-inch thickness, and a 3/64-inch corner radius, this insert fits standard CNGA-style toolholders and is suited for roughing to finishing passes where heat and wear resistance are critical. It is installed and used by CNC machinists and toolroom technicians working on aerospace and high-temperature alloy components.

This insert is applied in turning, facing, and boring operations on superalloys and titanium workpieces. The whiskered ceramic grade KY4300 performs best at elevated cutting speeds where carbide grades lose their edge. Typical use cases include production turning of nickel-based alloys, cobalt alloys, and titanium components in aerospace, power generation, and medical manufacturing environments. The neutral hand orientation makes it compatible with both left- and right-hand setups depending on the toolholder configuration.

Key Features

• Whiskered ceramic substrate (alumina SiC) grade KY4300 engineered for superalloys and titanium
• Diamond 80-degree insert shape (CNGA) with neutral hand for versatile setups
• T-land cutting edge with flat-top chip breaker for controlled engagement
• Four cutting edges per insert maximizing tool life per unit
• Uncoated bright finish suitable for high cutting-speed ceramic applications
• Compatible with clamp and pin insert holding methods per KENLOC toolholder design

Compatibility

Designed for use in CNGA-style KENLOC series toolholders. Conforms to ANSI and ISO standards with ISO code CNGA190612T02020 and industry standard number CNGA643T0820. Suitable for turning, facing, and boring applications on superalloys and titanium workpieces.

Installation Notes

This insert is installed by qualified CNC machinists or toolroom technicians using the appropriate KENLOC clamp and pin holding method. Power down and lock out the machine spindle before seating or replacing inserts. Inspect the toolholder pocket and seating surfaces for chips or wear before installing a new insert. Follow the toolholder manufacturer torque and clamping specifications for the specific holder being used.