Kyocera TCS89048 Ceramic Turning Insert Round A66N

Product Description

The KYOCERA TCS89048 is a round ceramic turning insert designed for precision metal cutting on hard materials in CNC and manual turning applications. The insert uses an Al2O3, TiC, and TiN PVD-coated ceramic substrate classified under grade A66N, delivering hardness resistance and thermal stability needed when machining materials in the H01 and H10 material grade range. It carries a 0.25 inch inscribed circle, a 0.125 inch corner radius, and a 0.18 inch thickness, with four available cutting edges per insert. The ISOI series designation and RCGX ISO code confirm its round, full-radius geometry with a positive rake and 7-degree relief angle. Licensed machinists and CNC operators install this insert into compatible clamp-style toolholders for high-speed finishing and semi-finishing operations.

This insert is suited for external turning, facing, roll machining, and undercutting operations on hard workpiece materials. The round insert shape and full-radius geometry make it effective in contour turning and applications where a continuous cutting edge path is required. It follows ANSI and ISO standards, making it compatible with standard RCGX-style clamp toolholders used in production turning environments. The neutral hand orientation allows use in both left- and right-hand holder configurations depending on toolholder design.

Key Features

• Al2O3, TiC, and TiN PVD-coated ceramic substrate for hard material machining
• Full-radius round insert shape with 4 usable cutting edges
• 0.125 inch corner radius with a maximum depth of cut of 0.125 inches
• Positive rake geometry with 7-degree relief angle for reduced cutting forces
• Neutral hand orientation compatible with both left- and right-hand toolholders
• Meets ANSI and ISO standards; RCGX102T04015 ISO code

Compatibility

Designed as an OEM-style replacement and standard-fit insert for RCGX-style clamp toolholders conforming to ANSI and ISO RCGX102T04015 specifications. Suitable for external turning, facing, roll machining, and undercutting applications on hard workpiece materials coded H.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before seating or replacing the insert in the clamp-style toolholder. Ensure the insert seat and clamp are clean and free of chips before securing to maintain proper seating and cutting geometry. Do not exceed the maximum depth of cut specified for the toolholder and insert combination.