RCMT1204MO 4325 High-Strength Round Turning Insert | Insert for Heavy-Duty Steel Machining

The RCMT1204MO 4325 is a high-strength round turning insert from Coromant, engineered for reliable and efficient metal cutting. Featuring the versatile 4325 carbide grade, this insert delivers excellent wear resistance and thermal stability, making it ideal for roughing to semi-finishing of steel (ISO P), as well as light-duty machining of stainless steel and alloy steels.

The MO chip-breaker (Medium Operation) ensures smooth cutting action, efficient chip evacuation, and stable performance even under varying cutting conditions. The round insert geometry offers superior edge strength and exceptional resistance to chipping, enabling the insert to handle heavy-duty cuts, interrupted turning, and high-impact operations with ease.

Key Features

• Versatile 4325 grade for excellent wear resistance and long tool life across a wide range of steel applications.

• MO chip-breaker provides reliable chip control and reduced cutting forces.

• High-strength round geometry ensures outstanding toughness and impact resistance.

• Ideal for heavy-duty cutting with large depths of cut and high feed rates.

• Consistent surface finish thanks to a stable cutting edge and reduced vibration.

• Multi-application capability for external turning, facing, profiling, and contouring.

Suitable Materials

• Steel (ISO P) – optimal performance

• Stainless steel (ISO M) – light-duty suitable

• General alloy steels

Best for Cutting Conditions

• Heavy and interrupted cuts

• Roughing & semi-finishing

• High-feed turning

• Profiling and radius transitions

Typical Applications

• Automotive components

• Engineering and machinery parts

• Shafts, flanges, sleeves

• Mass-production turning environments