Iscar 3328956 DNMG432-M3P Carbide Turning Insert IC830

Product Description

The ISCAR 3328956 is a DNMG432-M3P carbide turning insert designed for general and interrupted turning operations on CNC lathes and turning centers. It carries the IC830 grade designation and features a multilayer PVD coating of TiAlN, AlTiN, and TiN applied under the proprietary SumoTec process. The insert has a 55-degree diamond shape with a positive rake geometry and an M3P chip breaker, which promotes controlled chip formation across a range of feed and depth-of-cut conditions. Right-hand cutting orientation. Maximum depth of cut is 6.00 mm (0.236 inches). This insert is sold individually and installed by machinists and CNC tooling technicians.

The 3328956 is suited for turning stainless steel, carbon and alloy steel, and high-temperature superalloys, corresponding to ISO workpiece material codes M, P, and S. The M3P chip breaker geometry performs across light to medium material removal rates. Typical applications include external turning passes where chip control and edge toughness are both priorities. The insert seats in standard DNMG-style toolholders with a center-hole clamping system.

Key Features

• IC830 grade carbide with PVD-applied SumoTec multilayer TiAlN, AlTiN, and TiN coating for wear and heat resistance
• 55-degree diamond insert shape (Shape Code D) with positive rake for reduced cutting forces
• M3P chip breaker geometry engineered for controlled chip flow on steel and superalloy turning
• Right-hand cutting orientation; ISO 13399 compliant geometry coding
• Maximum depth of cut 6.00 mm (0.236 inches) supports medium material removal rates
• Isoturn series; DNMG 432-M3P ISO designation

Compatibility

Designed to seat in standard DNMG-style turning toolholders that accept a 55-degree diamond insert with center-hole (N clearance, M tolerance) clamping. Verify toolholder seat geometry and insert pocket dimensions before installation.

Installation Notes

Insert seating and clamping should be performed by a qualified machinist or CNC tooling technician following the toolholder manufacturer's torque and clamping specifications. Power down and lock out the machine spindle before changing inserts. Inspect the insert pocket and clamping screw for wear or debris before seating a new insert. Always verify insert orientation and hand designation match the toolholder before initiating a cut.