Sumitomo 19RJAWF Turning Insert DNMG432 AC820P Carbide

Product Description

The SUMITOMO 19RJAWF is a solid carbide turning insert designed for precision metal cutting in CNC and manual lathe applications. It carries the ANSI insert code DNMG432 and ISO designation DNMG150408N-SE, featuring a 55-degree diamond (rhombic) shape and a neutral hand orientation. The insert is CVD-coated with Al2O3 for high wear resistance across a range of cutting conditions. With a 0.0313-inch corner radius and an ESE chip breaker geometry, it is optimized for finishing and light machining operations on steel and cast iron. Grade AC820P balances wear resistance with toughness for P and K workpiece material categories.

This insert is suited for turning steel and cast iron workpieces in both residential and industrial production environments. The ESE chip breaker geometry targets finishing passes and light material removal rates where surface finish and dimensional accuracy are critical. It is installed in standard DNMG-style toolholders using clamp or pin holding methods, compatible with negative-rake insert seats meeting ANSI and ISO 13399 standards. Machinists and CNC operators in job shops and production facilities are the primary users.

Key Features

• CVD Al2O3 coating provides high wear resistance for extended tool life on steel and cast iron
• 55-degree diamond insert shape (DNMG) allows access to tight shoulder and profile cuts
• ESE chip breaker geometry engineered for finishing and light machining operations
• Neutral hand orientation fits left- or right-hand toolholder configurations
• AC820P grade delivers balanced wear resistance and toughness across P and K material codes
• Meets ANSI and ISO 13399 standards for interchangeable insert tooling

Compatibility

Designed as an OEM-style replacement or direct-fit insert for DNMG432 negative-rake toolholders accepting clamp or pin clamping methods per ANSI and ISO 13399 insert standards. Primary workpiece material codes P (steel) and K (cast iron).

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before seating or replacing inserts. Use the appropriate torx or hex key to secure the clamp or pin to the manufacturer-specified procedure for the toolholder in use. Inspect the insert seat and toolholder pocket for chips or debris before installing a new insert to ensure proper seating and edge repeatability.