Sumitomo 19P7BPD Turning Insert CCMT21.52ESU AC8025P Carbide

Product Description

The SUMITOMO 19P7BPD is a solid carbide CVD-coated turning insert designed for precision metal cutting operations on CNC and manual lathes. Manufactured to ANSI code CCMT21.52ESU and ISO code CCMT060208N-SU, this insert carries the AC8025P grade coating and features an 80-degree diamond shape with a positive rake geometry. The ESU chip breaker design controls chip flow during turning, and the 7-degree relief angle reduces friction at the cutting edge. It is installed via screw-holding method and is suited for steel workpiece materials in production and job-shop turning environments.

This insert is intended for external and internal turning applications where steel is the primary workpiece material (ISO material code P). The CCMT style and neutral hand orientation make it compatible with a wide range of standard CCMT-style toolholders. It is commonly used in precision turning, facing, and light profiling operations on steel components. The AC8025P grade with CVD coating provides wear resistance suited to moderate-to-high cutting speeds on low-alloy and carbon steels. Machinists and CNC operators in production shops install this insert as part of indexable tooling systems.

Key Features

• Solid carbide substrate with CVD-applied AC8025P coating for wear resistance on steel
• 80-degree diamond insert shape (ANSI shape code C) with positive rake for reduced cutting forces
• ESU chip breaker geometry for controlled chip evacuation during steel turning
• Screw-holding method with 0.1102-inch hole diameter for secure toolholder retention
• 7-degree relief angle (clearance code C) minimizes edge rubbing on the workpiece
• Meets ANSI and ISO 13399 standards; dual-coded for ANSI and ISO toolholder compatibility

Compatibility

Designed as a replacement-style CCMT turning insert compatible with standard CCMT screw-clamp toolholders accepting a 1/4-inch inscribed circle insert. Primary workpiece material is steel (ISO P code). Not intended for full-radius or multi-use tooling configurations.

Installation Notes

Installation is performed by machinists or CNC tooling technicians. Power down and de-energize the machine spindle before indexing or replacing inserts. Use the appropriate torx or hex key to secure the clamping screw to the toolholder manufacturer's specified procedure. Handle carbide inserts with care to avoid chipping the cutting edge during installation.