Sumitomo 19RJBEP Turning Insert VNMG331EUX AC820P Carbide

Product Description

The SUMITOMO 19RJBEP is a VNMG-style solid carbide turning insert designed for precision metal cutting on CNC lathes and turning centers. Coated with aluminum oxide (Al2O3) via CVD process under the AC820P grade, this insert delivers thermal resistance and wear performance suited to steel turning applications. It features a 35-degree diamond shape, neutral hand orientation, a 3/8-inch inscribed circle, and a 1/64-inch corner radius. The EUX chip breaker geometry controls chip flow across a range of depths of cut and feed rates. Licensed machinists and CNC operators install this insert as part of routine tooling maintenance and changeover.

This insert is intended for turning operations on steel workpieces (ISO material group P). The neutral rake and VNMG geometry make it suitable for both external and internal turning profiles where 35-degree approach angles are required. It fits standard VNMG-compatible toolholders using clamp and pin holding methods. Typical applications include finishing and semi-finishing passes on carbon steel, alloy steel, and similar ferrous materials. This insert ships in individual package quantities and carries a minimum order quantity of 10 pieces.

Key Features

• AC820P grade with CVD-deposited Al2O3 coating for high-temperature wear resistance in steel cutting
• 35-degree diamond insert shape (ANSI code VNMG331EUX, ISO code VNMG160404N-UX) for versatile approach angles
• EUX chip breaker geometry for controlled chip evacuation across varied feed and depth conditions
• Neutral hand orientation compatible with standard VNMG right- and left-hand toolholder setups
• Clamp and pin holding method for secure, repeatable seating in compatible toolholders
• 0 degree relief angle (clearance code N) with tolerance code M for consistent dimensional accuracy

Compatibility

Designed as an OEM-style replacement turning insert for VNMG-compatible toolholders. Compatible with holders using clamp and pin clamping methods sized for a 3/8-inch inscribed circle insert. Intended for use on steel workpieces per the secondary workpiece material designation (ISO code P). Confirm toolholder seat geometry and clamping style before installation.

Installation Notes

Installation is performed by CNC machinists or toolroom technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate torque wrench per the toolholder manufacturer's clamping hardware specifications. Inspect the toolholder seat and clamping pin for wear or debris before seating a new insert to ensure proper contact and runout control.