Sumitomo 19RB633 Turning Insert CCMT432-ESU AC830P Carbide

Product Description

The SUMITOMO 19RB633 is a CCMT-style indexable turning insert designed for precision metal cutting applications in CNC and manual lathe operations. Manufactured from solid carbide and coated with aluminum oxide (Al2O3) via a CVD process, this insert carries the AC830P manufacturer grade, which is suited for a range of steel and universal workpiece materials. The insert features an 80-degree diamond shape, a 0.5079-inch length, a 1/2-inch inscribed circle, and a 1/32-inch corner radius. The neutral hand orientation and positive rake angle of 8 degrees support efficient chip formation and surface finish control. Licensed machinists and CNC operators install this insert in standard screw-lock toolholders.

This insert is intended for turning operations on steel and universal workpiece material categories, consistent with material grade designations C5, C5A, and C6. The ESU chip breaker geometry is optimized for general-purpose and finish turning scenarios. The CCMT432 size code and ISO equivalent CCMT120408N-SU make this insert compatible with a wide range of CCMT-accepting toolholders used in production and job-shop environments. It is appropriate for both roughing and finishing passes depending on depth of cut and feed rate selection. This insert conforms to ANSI and ISO 13399 standards.

Key Features

• AC830P carbide grade with Al2O3 CVD coating for wear resistance on steel workpieces
• 80-degree diamond insert shape (Shape Code C) for versatile approach angles
• ESU chip breaker for controlled chip formation during turning operations
• Positive rake angle (8 degrees) reduces cutting forces and heat generation
• Neutral hand orientation fits left- and right-hand toolholder configurations
• Screw-lock insert holding method for secure, repeatable seating in the pocket
• Compliant with ANSI and ISO 13399 insert identification standards

Compatibility

Compatible with CCMT432-style screw-lock toolholders accepting a 1/2-inch inscribed circle insert. ISO equivalent designation is CCMT120408N-SU. Rated for secondary workpiece material categories Universal, M, and P, corresponding to material grades C5, C5A, and C6.

Installation Notes

This insert is installed by a machinist or CNC tooling technician. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate torx or hex wrench to seat the clamping screw to the toolholder manufacturer's specified torque. Inspect the insert pocket and seating surface for chips or debris before installing a new insert to ensure proper contact and prevent premature edge failure.