Seco 02615938 Turning Insert Dnmg 443-MF4 TS2000

Product Description

The SECO 02615938 is a solid carbide turning insert in the DNMG 443-MF4 geometry, coated with a multilayer TiAlN and TiN PVD coating under the TS2000 manufacturer grade. It features a 55-degree diamond shape, a 0.5000-inch inscribed circle, and a 3/64-inch (0.0472-inch) corner radius. Designed for negative rake cutting, the MF4 chip breaker geometry supports light to medium finishing operations. This insert is suited for CNC turning centers and is installed by machinists and tooling technicians working in precision metalworking environments. The chamfered and honed cutting edge style helps extend tool life in demanding materials.

This insert is engineered primarily for stainless steel and superalloys including titanium, making it a strong choice for aerospace, medical, and industrial component machining. It also performs in secondary applications on steel, cast iron, and hard materials. Typical use cases include back turning, boring, facing, and general OD turning. With four cutting edges, the insert delivers multiple index positions per unit, reducing per-edge tooling cost in production environments. The ISO code for this insert is DNMG150612-MF4, and the industry standard designation is DNMG443-MF4.

Key Features

• TiAlN and TiN multilayer PVD coating under TS2000 grade for wear resistance in stainless and titanium alloys
• MF4 chip breaker geometry optimized for finishing cuts with controlled chip formation
• 55-degree diamond insert shape (DNMG) with chamfered and honed cutting edge for edge toughness
• Four usable cutting edges per insert for extended service life
• Compatible with clamp, pin, and lever lock holding methods for broad toolholder compatibility
• Negative rake, neutral hand geometry — suitable for both right- and left-hand applications

Compatibility

Designed for use in DNMG-style toolholders that accept a 0.5000-inch inscribed circle insert with a 0.2028-inch hole diameter and clamp, pin, or lever lock retention. Conforms to ANSI and ISO standards. ISO insert designation DNMG150612-MF4.

Installation Notes

Insert indexing and replacement is performed by qualified machinists or tooling technicians. Always power down and lock out the machine spindle before handling inserts or adjusting toolholders. Use the appropriate torque wrench or insert key specified by the toolholder manufacturer when securing the clamping screw — do not overtighten. Inspect the insert seat and toolholder pocket for chips or debris before seating a new insert to ensure proper contact and runout.