Sumitomo 19P7BYH Carbide Turning Insert WNMG432EGE AC8025P

Product Description

The SUMITOMO 19P7BYH is a WNMG432EGE-style solid carbide turning insert designed for external and internal turning operations on steel workpieces. Manufactured to grade AC8025P with a CVD-applied coating, this insert is built for consistent performance in steel cutting applications where edge stability and wear resistance are required. The insert features an 80-degree trigon shape, a 0.5-inch inscribed circle, and a 0.0313-inch corner radius. It carries a negative rake geometry with a clearance code of N and tolerance code of M. The EGE chip breaker geometry is engineered to manage chip flow in medium to finish steel turning passes. Licensed machinists and CNC operators install this insert in standard WNMG-compatible toolholders.

This insert is intended for steel turning applications in production and job-shop environments. The AC8025P grade is suited for primary workpiece material code P, covering carbon steels, alloy steels, and tool steels. The EGE chip breaker designation targets medium finishing cuts where controlled chip formation is critical. The insert fits WNMG432-size toolholders that accept clamp and pin holding methods. It conforms to ANSI code WNMG432EGE and ISO code WNMG080408N-GE, making it compatible with both domestic and metric toolholder systems. This insert is sold individually with a minimum order quantity of 10 units.

Key Features

• Grade AC8025P with CVD coating for wear resistance in steel turning
• 80-degree trigon insert shape (W) with negative rake geometry
• EGE chip breaker for controlled chip flow in medium to finish cuts
• 0.5-inch inscribed circle and 0.0313-inch corner radius
• Conforms to ANSI WNMG432EGE and ISO 13399 WNMG080408N-GE standards
• Clamp and pin holding method for secure seating in compatible toolholders

Compatibility

Designed for use in WNMG432-compatible toolholders that support clamp and pin insert retention. Primary workpiece material is steel (material code P). Conforms to ANSI code WNMG432EGE and ISO code WNMG080408N-GE per ANSI and ISO 13399 standards.

Installation Notes

Installation is performed by machinists or CNC tooling technicians. Power down and lock out the machine before seating or replacing inserts. Ensure the toolholder pocket and clamping surfaces are clean and free of chips before installing the insert. Use the correct torque wrench for the clamping screw — refer to the toolholder manufacturer's specification sheet for the proper value, as no torque figure is provided here.