Seco 03096354 Turning Insert DCMT070204-MF2 TP3501 Carbide

Product Description

The SECO 03096354 is a DCMT070204-MF2 turning insert in grade TP3501, designed for precision metal cutting in CNC lathe and turning center applications. The insert features a 55-degree diamond shape with a positive rake geometry and an MF2 chip breaker profile optimized for finish to medium turning. The cutting edges are chamfered and honed for controlled engagement. A multilayer CVD coating — TiCN, Al2O3, and Cr — under the Duratomic classification provides wear resistance and thermal stability. With a 0.25-inch inscribed circle and a 1/64-inch corner radius, this insert is suited for light to medium depths of cut on steel and stainless steel workpieces. Two cutting edges per insert allow for cost-effective usage before replacement.

This insert is intended for use in steel (ISO P) and stainless steel (ISO M) turning operations, covering material grades P20, P30, and P40. Typical applications include back turning, boring, facing, and general OD turning on CNC lathes and turning centers in job shop, production, and maintenance machining environments. The screw-lock holding method and DCMT-style geometry are compatible with standard DCMT-style toolholders used across a wide range of lathe setups. The neutral hand orientation suits most standard right-hand and left-hand holders designed for DCMT inserts.

Key Features

• 55-degree diamond insert shape with positive rake for reduced cutting forces on steel and stainless steel
• Duratomic CVD multilayer coating (TiCN, Al2O3, Cr) for high wear resistance and thermal stability
• MF2 chip breaker geometry designed for finish to medium turning operations
• Chamfered and honed cutting edge style for edge security and consistent surface finish
• Two usable cutting edges per insert for extended value per piece
• Screw-lock insert holding method for secure, repeatable seating in compatible toolholders

Compatibility

Designed for use in standard DCMT-style screw-lock toolholders. Primary workpiece material is steel (ISO P, grades P20, P30, P40); secondary workpiece material is stainless steel (ISO M). Conforms to ANSI and ISO standards. Industry standard number DCMT21.51-MF2 and ISO code DCMT070204-MF2 can be used for cross-reference with compatible holder selection charts.

Installation Notes

Installation is performed by a machinist or CNC tooling technician. Power down and lock out the machine spindle before seating or replacing inserts. Use the appropriate Torx or hex key to secure the clamping screw to the toolholder per the toolholder manufacturer's specified procedure — do not overtighten. Inspect the insert pocket and seating surface for chips or debris before installing a new insert to ensure proper seating and edge repeatability.