Sumitomo 19P7824 Carbide Turning Insert WNMG432 AC8025P

Product Description

The SUMITOMO 19P7824 is a WNMG432 geometry carbide turning insert finished with an AC8025P CVD coating designed for external and internal turning operations on CNC lathes and turning centers. It features an 80-degree trigon (W) insert shape with a negative rake and negative side clearance, giving the cutting edge strong support against interrupted cuts and heavy feeds. The inscribed circle measures 0.5 inches, insert thickness is 0.1875 inches, and the corner radius is 0.0313 inches. The EGUW chip breaker geometry targets medium machining applications where chip control and surface finish consistency are priorities. Licensed machinists and CNC operators install and index this insert.

This insert is suited for turning steel and cast iron workpieces in both production and job-shop environments. The AC8025P grade provides high wear resistance for steel (ISO P) applications and moderate wear resistance with toughness for cast iron (ISO K) work. The wiper edge geometry produces improved surface finishes at standard feed rates without requiring a dedicated finishing pass, making it a practical choice for medium-stock-removal operations where cycle time and finish quality both matter.

Key Features

• AC8025P CVD-coated carbide grade engineered for ISO P steel and ISO K cast iron cutting
• EGUW wiper chip breaker optimized for medium machining with active chip control
• 80-degree trigon insert shape (W) with negative rake for increased edge strength
• Wiper edge geometry delivers enhanced surface finish at standard feed rates
• Neutral hand orientation for flexible use in right- or left-hand toolholders
• Dual holding method compatibility: clamp and pin retention

Compatibility

Designed for use in WNMG432-compatible toolholders accepting negative-rake W-style inserts with clamp or pin retention. Conforms to ANSI and ISO 13399 standards; ISO equivalent code WNMG080408N-GUW. Verify toolholder pocket geometry and insert seating before use.

Installation Notes

Insert indexing and replacement should be performed by a qualified machinist with the machine fully stopped and the spindle locked out per applicable machine safety procedures. Use the correct torque wrench and seating tool specified by the toolholder manufacturer when securing the clamp or tightening the retention pin. Inspect the insert pocket and seating surface for chips or debris before seating a new insert. Do not attempt to re-grind or modify the cutting edge.