Sumitomo 19RJBEM Turning Insert DNMG431EUX AC820P Carbide

Product Description

The SUMITOMO 19RJBEM is a DNMG-style indexable turning insert designed for precision metal cutting on CNC lathes and turning centers. It features a 55-degree diamond insert shape with a neutral hand orientation, making it suitable for general-purpose external and internal turning operations. The insert carries the AC820P manufacturer grade with an aluminum oxide (Al2O3) CVD coating that improves wear resistance and thermal stability at elevated cutting temperatures. The inscribed circle measures 0.5 inches, overall insert length is 0.6102 inches, insert thickness is 0.1875 inches, and the corner radius is 0.0156 inches (1/64 inch). This insert is held using a clamp and pin method and is intended for use by machinists and toolroom professionals working on steel workpiece materials.

The 19RJBEM is suited for steel turning applications in both production and job-shop environments. The EUX chip breaker geometry promotes chip control during continuous and light interrupted cuts on steel components. The ISO code for this insert is DNMG150404N-UG, which cross-references to standard ANSI and ISO 13399 tooling systems. The AC820P grade targets secondary workpiece material code P, covering carbon steels, alloy steels, and similar ferrous materials typically encountered in general machining work.

Key Features

• AC820P grade with CVD Al2O3 coating for extended tool life on steel
• 55-degree diamond insert shape (DNMG style) with neutral rake angle
• EUX chip breaker geometry for reliable chip control on steel turning
• Corner radius of 0.0156 inches (1/64 inch) for finish and semi-finish turning
• Clamp and pin holding method for secure seating in compatible toolholders
• Meets ANSI and ISO 13399 standards for indexable insert geometry

Compatibility

Designed as an OEM-style replacement or direct-use insert for DNMG-style turning toolholders that accept a 1/2-inch inscribed circle, 55-degree diamond insert with a clamp and pin holding method, conforming to ANSI and ISO 13399 standards.

Installation Notes

Installation should be performed by a qualified machinist with the machine powered down, spindle locked, and all guards in place before index or replacement. Use the appropriate torque wrench and clamp hardware specified by the toolholder manufacturer when securing the insert. Inspect the insert pocket and seating surfaces for debris or damage before installing a new insert. Follow the toolholder manufacturer guidelines for proper clamp torque and insert orientation to prevent insert movement during cutting.