Ingersoll Cutting Tools 6158920 Rpgx Ceramic Turning Insert

Product Description

The INGERSOLL CUTTING TOOLS 6158920 is a round ceramic turning insert designed for high-performance metal removal in demanding machining applications. Manufactured to ANSI insert code RPGX35 and ISO code RPGX090700T6, this insert carries the TC3030 manufacturer grade, which is engineered for moderate wear resistance and toughness through high toughness in superalloy and titanium workpiece materials. With a 3/8 inch inscribed circle and a 3/16 inch corner radius, the insert geometry supports consistent, stable cutting in interrupted and continuous cuts alike. It ships bright and uncoated, with a positive rake and positive side clearance. Licensed machinists and CNC programmers working in aerospace, medical, and energy sectors will find this insert suited to their material requirements.

This insert is intended for turning operations on primary workpiece materials coded S under ISO classification, which covers superalloys and titanium alloys. The RPGX style features a chip breaker designation of X and is held by screw mounting, making it compatible with toolholders designed for round screw-on inserts. Typical applications include roughing and semi-finishing passes on nickel-base superalloys, cobalt alloys, and titanium where ceramic cutting grades offer a speed and productivity advantage over carbide. The neutral hand configuration allows the insert to run in either direction depending on toolholder orientation.

Key Features

• TC3030 ceramic grade rated for superalloys and titanium, primary workpiece material code S
• Round insert shape with 3/8 inch inscribed circle and 3/16 inch corner radius for stable engagement
• Positive rake and positive side clearance geometry reduces cutting forces
• Bright uncoated finish preserves as-ground edge sharpness out of the box
• Screw-held mounting (clearance code P, tolerance code G) for repeatable indexing
• 2 cutting edges per insert maximizes value per unit

Compatibility

Designed as an OEM-style replacement or direct-fit insert for toolholders accepting round RPGX-style screw-on inserts with a 3/8 inch inscribed circle. No specific compatible model numbers were provided in the product data.

Installation Notes

This insert is installed by machinists and CNC tooling technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Use the manufacturer-specified torque wrench for the insert clamping screw to avoid cracking the ceramic substrate. Ceramic inserts are brittle compared to carbide; handle edges carefully and avoid impact or dropping. Verify toolholder pocket condition and seating surface cleanliness before indexing to a fresh cutting edge.