Sandvik Coromant 6398177 Cutoff Insert 3mm Corocut Qd

Product Description

The SANDVIK COROMANT 6398177 is a solid carbide cutoff insert designed for parting and grooving operations on CNC lathes and turning centers. Built to the CoroCut QD series specification, this insert features a 3.00 mm cutting width (0.1181 inches), a neutral lead angle of 0 degrees, and a 7-degree relief angle. The CL chipbreaker geometry promotes controlled chip evacuation in a range of workpiece materials. A PVD-applied TiCN/Al2O3/TiN coating improves wear resistance and surface finish quality. Machinists and tool-and-die shops use this insert for precision parting cuts in production turning environments.

This insert is suited for light to medium-duty cutoff and grooving applications on ferrous and non-ferrous materials. The QD insert style uses a clamp holding method, providing rigid, repeatable seating in compatible CoroCut QD toolholders and blade systems. The 0.30 mm corner radius (0.0118 inches) reduces stress concentration at the cutting edge, making it appropriate for finishing passes and close-tolerance parting operations. It is typically installed by CNC machinists and tool room technicians in precision machining environments.

Key Features

• 3.00 mm cutting width (0.1181 inches) for precise parting and grooving
• Solid carbide construction with PVD-applied TiCN/Al2O3/TiN coating for extended tool life
• Neutral lead angle and 7-degree relief angle support clean, consistent cuts
• CL chipbreaker geometry promotes controlled chip flow during cutoff operations
• 0.30 mm corner radius (0.0118 inches) reduces edge stress on finishing passes
• Clamp holding method ensures rigid, repeatable insert seating

Compatibility

Designed for use with CoroCut QD series toolholders and blade systems that accept G-seat inserts with the QD insert style. Verify toolholder seat size and clamping compatibility before installation.

Installation Notes

Installation should be performed by a qualified CNC machinist or tool room technician. Power down and lock out the machine before changing inserts. Use the correct torque wrench for the clamp screw as specified by the toolholder manufacturer — do not overtighten, as this can crack the carbide insert. Inspect the insert seat and clamping surfaces for chips or debris before seating the new insert.