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The SECO 02959900 is a solid carbide indexable turning insert in the SNMG-M6 series, designed for precision metal cutting in professional machining environments. It carries the industry standard designation SNMG433-M6 and ISO code SNMG120412-M6. The insert features a CVD-applied Duratomic multilayer coating of TiCN, Al2O3, and Cr for wear resistance across a range of cutting conditions. With a negative rake geometry, 0-degree relief angle (clearance code N), and an M6 chip breaker, it is built for stable, controlled cuts on steel and cast iron. Licensed machinists and CNC operators working in turning, facing, and boring applications install this insert in compatible toolholders.
This insert is intended for primary use on steel workpieces (ISO material code P, grades P10 and P20), with secondary suitability for cast iron (code K) and hard materials (code H). The M6 chip breaker geometry supports medium-depth roughing and semi-finishing operations. Typical applications include external and internal turning, facing passes, and boring cycles on CNC lathes and turning centers. The insert is a multi-use, multi-tipped design compatible with clamp, pin, and lever-lock holding methods, making it adaptable to a wide range of SNMG-compatible toolholder styles.
Designed for use in SNMG-series toolholders that accept clamp, pin, or lever-lock insert retention. Suitable for steel (P10, P20), cast iron (K), and hard material (H) workpieces per ISO material classification. Multi-use application covering boring, facing, and turning operations.
Installation is performed by qualified machinists or CNC tooling technicians. Always index or replace inserts with the machine powered down and spindle locked. Use the correct torque wrench and manufacturer-specified fastener torque for the toolholder system when seating the insert. Inspect the insert pocket and seating surfaces for debris or wear before installing a new edge.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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