Sumitomo 19P7BPK Turning Insert DCMT32.51ESU AC8025P

Product Description

The SUMITOMO 19P7BPK is a solid carbide CVD-coated turning insert designed for single-point turning operations on steel workpieces. It carries the ANSI designation DCMT32.51ESU and ISO code DCMT11T304N-SU, placing it in the DC series with a 55-degree diamond insert shape. The AC8025P manufacturer grade coating is applied via CVD process over a solid carbide substrate, delivering wear resistance suited to continuous and semi-interrupted cuts in steel. The ESU chip breaker geometry and positive rake promote efficient chip control and reduced cutting forces. Installation is performed by licensed machinists and CNC setup technicians using standard screw-holding torx or hex tooling per the screw-lock (DCMT) insert pocket system.

This insert is intended for external and internal turning, facing, and profiling operations where the primary workpiece material is steel, classified under ISO material code P. The neutral hand orientation allows use on both conventional and opposing tool post configurations. The ESU chip breaker geometry is well suited to finishing and semi-finishing passes where consistent chip evacuation and surface finish are priorities. This insert is sold individually per package with a minimum order quantity of 10 units.

Key Features

• 55-degree diamond insert shape (Shape Code D) for accessible entry angles in turning and profiling
• AC8025P CVD-coated solid carbide grade optimized for steel (ISO P) cutting applications
• ESU chip breaker geometry promotes positive rake cutting action and controlled chip flow
• Screw-holding method (DCMT pocket) provides secure, repeatable insert indexing
• Neutral insert hand for versatile mounting on standard and reversed tool holders
• Compliant with ANSI and ISO 13399 standards for insert identification and interchangeability

Compatibility

Designed as a screw-lock replacement turning insert for DCMT-style insert pockets compatible with the DC series tool holders accepting a 3/8-inch inscribed circle, 55-degree diamond insert. Specific compatible holder models were not identified in the available product data.

Installation Notes

Insert seating and replacement should be performed by a qualified machinist or CNC technician with the machine spindle fully stopped and locked out per OSHA lockout/tagout procedures. Use the correct torx or hex key driver to seat the clamping screw to the tool holder manufacturer's specified feel without over-torquing the carbide insert. Inspect the insert pocket and screw for debris or wear before seating a new insert. Index or replace inserts at the first sign of edge wear to avoid workpiece damage or tool holder pocket degradation.