WNMX09T316ZNN-MM PC5300 CVD Coated Carbide Turning Insert with MM Chipbreaker and R1.6 Corner Radius for Heavy Rough CNC Turning

The WNMX09T316ZNN-MM PC5300 is premium coated heavy-duty carbide turning insert engineered for heavy rough turning and interrupted cutting on CNC lathes. Designed with 80° W-type negative geometry, ZNN special edge form plus MM customized chipbreaker and advanced PC5300 dedicated carbide substrate, the insert delivers superior impact toughness and wear resistance to sustain stable performance under heavy stock removal and severe intermittent turning conditions.

Optimized MM chip groove achieves stable chip curling and smooth chip evacuation, ensuring reliable dimensional consistency and prolonged service life for large-quantity heavy rough machining of structural components and forged parts.

• PC5300 fine-grain carbide substrate with multi-layer CVD coating features outstanding high-temperature wear resistance and impact resistance, applicable for rough machining of carbon steel, alloy steel and pre-hardened steel.
• Specially structured MM chipbreaker controls thick swarf effectively to avoid chip jamming and workpiece surface damage during heavy cutting.
• Standard WNMX09T3 insert specification with rational clearance design, accurate positioning and stable clamping on matched WNMG/WNMX series tool holders.
• Precision honed cutting edge improves anti-chipping performance under high cutting load and reduces post-processing burrs.
• Strengthened edge profile restrains built-up edge generation during long-time continuous heavy cutting and extends insert service lifespan significantly.

• Carbon steel
• Alloy structural steel
• Pre-hardened steel
• Cast steel
• Forged steel parts

• Heavy rough outer diameter turning
• High depth-of-cut interrupted turning
• Large forging blank machining
• Batch heavy-duty component turning
• General rough boring processing

Combining robust PC5300 coated carbide substrate and practical MM chipbreaker plus reinforced ZNN edge design, the WNMX09T316ZNN-MM maintains stable cutting performance under heavy cutting load and interrupted cutting scenarios for steel workpieces. Its superior shock-resistant property cuts down unexpected insert breakage loss and improves overall workshop roughing efficiency, acting as a reliable heavy rough turning insert for mass blank machining.