Sandvik Coromant 8432218 Carbide Cut-off Insert Macr 1205

Product Description

The SANDVIK COROMANT 8432218 is a carbide cut-off and parting insert designed for precision grooving and parting operations on CNC lathes and turning centers. Manufactured to Grade 1205 with a PVD AlTiN coating, this insert delivers controlled chip formation and extended tool life when machining difficult materials. It features a 2.00 mm (0.0787 inch) cutting width and a maximum depth of cut of 8.20 mm (0.3228 inch). The MACR insert style uses a screw and clamp holding method for rigid, repeatable seating. This insert is installed by machinists and CNC operators in production turning environments.

The 8432218 is engineered primarily for parting and grooving of super-alloys and titanium, with secondary suitability for stainless steel. The MAC chipbreaker geometry promotes efficient chip evacuation in these tough, work-hardening materials. The right-hand cutting direction and 15-degree lead angle make it suited for standard right-hand turning setups. Insert Size Code 3 and Insert Seat Size 3 designate the toolholder interface required for proper fit. This insert is applicable in aerospace, medical, and high-performance manufacturing environments where tight tolerances and surface finish are critical.

Key Features

• Grade 1205 carbide substrate with PVD AlTiN coating for thermal and wear resistance in super-alloys and titanium
• MAC chipbreaker geometry designed for controlled chip formation during parting operations
• 2.00 mm (0.0787 inch) cutting width with a maximum depth of cut of 8.20 mm (0.3228 inch)
• Screw and clamp holding method for secure, repeatable insert positioning
• Right-hand cutting direction with a 15-degree lead angle
• ISO Code MACR 3 200-T 1205 for cross-reference with compatible toolholders

Compatibility

Designed for use with SANDVIK COROMANT XS-series toolholders accepting Insert Size Code 3 and Insert Seat Size 3. ISO Code MACR 3 200-T 1205 identifies the required holder interface. Consult the SANDVIK COROMANT toolholder selection guide to confirm holder compatibility before ordering.

Installation Notes

Installation should be performed by a qualified machinist or CNC toolroom technician. Power down the machine and confirm the spindle is fully stopped before changing inserts. Use the correct torx or hex key specified by the toolholder manufacturer to secure the clamping screw to the appropriate seating torque per the holder documentation. Inspect the insert pocket and seating surfaces for chips or contamination before seating the new insert to ensure proper contact and runout.