Sumitomo 19P7109 Turning Insert TPMT222ESU AC8025P Carbide

Product Description

The SUMITOMO 19P7109 is a solid carbide turning insert in the TPMT series, designed for precision external turning operations on steel workpieces. It carries the AC8025P manufacturer grade and features Absotech CVD coating, which provides wear resistance and thermal stability during interrupted and continuous cuts. The insert geometry is triangular with a 60-degree included angle, a neutral hand orientation, and a positive rake configuration. With a corner radius of 0.031 inches and an inscribed circle of 0.25 inches, this insert suits finishing and semi-finishing passes where dimensional accuracy and surface finish are priorities. Licensed machinists and CNC lathe operators install this insert in TPMT-compatible toolholders using the screw-clamping method.

This insert is intended for turning steel in CNC and manual lathe applications. The ESU chip breaker geometry is optimized for steel cutting, managing chip flow during moderate to high feed rates. The TPMT style with clearance code P and tolerance code M makes it a standard fit for production turning environments, including job shops and manufacturing facilities running ISO and ANSI-spec tooling systems. It is suitable for both light roughing and finishing cuts on carbon steels and alloy steels where the primary workpiece material code is P.

Key Features

• AC8025P grade with Absotech CVD coating for wear and heat resistance on steel
• ESU chip breaker geometry designed for controlled chip flow on steel workpieces
• Positive rake, neutral hand configuration reduces cutting forces
• Screw-clamping insert holding method for secure seating in compatible toolholders
• Conforms to ANSI code TPMT222ESU and ISO code TPMT110308N-SU for broad toolholder compatibility
• Triangular insert shape with 60-degree included angle provides three usable cutting edges

Compatibility

Designed for use in TPMT-series screw-clamp toolholders conforming to ANSI and ISO 13399 standards. Verify toolholder pocket geometry, inscribed circle, and insert thickness specifications before installation.

Installation Notes

Insert installation should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before changing inserts. Use the appropriate torx or hex key to seat the clamping screw to the toolholder manufacturer's specification — do not overtighten. Inspect the insert pocket and clamping screw for wear or debris before seating the new insert.