Sumitomo 19T5CHS Carbide Turning Insert DNMG433EEF

Product Description

The SUMITOMO 19T5CHS is a solid carbide turning insert in the DNMG433EEF-AC5015S configuration, designed for precision metal cutting on CNC lathes and turning centers. It features a 55-degree diamond insert shape with a 0.5-inch inscribed circle, a 0.0469-inch corner radius, and a 3/16-inch (0.1875-inch) thickness. The TiAlSiN coating is applied via PVD process under Sumitomo's Absotech Bronze proprietary designation, providing wear resistance and thermal stability. The insert carries a negative rake angle of 20 degrees and is intended for neutral cutting direction. Licensed machinists and CNC operators working in production or job-shop environments install and index these inserts as part of tooling setups on standard turning equipment.

This insert is primarily engineered for machining powdered metal workpiece materials (material code S, material grade S10), a demanding application that requires a tough, wear-resistant coating and precise chip control geometry. The EEF chip breaker geometry supports consistent chip formation in these difficult-to-machine materials. The screw-clamping insert holding method is compatible with standard DNMG-style toolholders. This insert conforms to ANSI code DNMG433EEF and ISO code DNMG150412N-EF, making it a direct fit in internationally standardized tooling systems. It suits both high-production turning operations and precision finishing passes where dimensional control is critical.

Key Features

• TiAlSiN coating via PVD process under Absotech Bronze designation for high wear resistance in powdered metal applications
• 55-degree diamond insert shape with EEF chip breaker for controlled chip formation
• 0.0469-inch corner radius and 0.5-inch inscribed circle for consistent edge geometry
• Negative rake angle (20 degrees) supports edge strength during interrupted or heavy cuts
• Screw-clamping hold method compatible with standard DNMG toolholder bodies
• Compliant with ANSI and ISO 13399 standards for interchangeability across tooling systems

Compatibility

Designed for use in DNMG-style screw-clamp toolholders conforming to ANSI and ISO 13399 standards. Specific toolholder compatibility depends on the insert size code 433 and clearance code N. Verify toolholder pocket geometry before installation. No additional compatible model numbers or system families were specified in the available product data.

Installation Notes

Insert indexing and replacement should be performed by a qualified machinist or CNC tooling technician with the machine fully stopped and the spindle locked out per facility lockout/tagout procedures. Use the appropriate torque wrench and clamping screw specified by the toolholder manufacturer to seat the insert without cracking the carbide. Inspect the toolholder pocket for wear or debris before seating a new insert. Handle carbide inserts carefully to avoid chipping the cutting edges prior to use.