Sandvik Coromant 6427384 Cutoff Insert 3mm Corocut Qd

Product Description

The SANDVIK COROMANT 6427384 is a carbide cutoff insert designed for parting and grooving operations on CNC lathes and turning centers. This insert carries the manufacturer catalog designation QD-NG-0300-0002-CM 1125 and belongs to the CoroCut QD series. It features a 3 mm cutting width, a neutral lead angle, a 7-degree relief angle, and a 0.20 mm corner radius. The CM chipbreaker geometry and TiCrAlN plus TiAlN PVD coating are suited for controlled chip formation and extended tool life in steel and stainless steel turning applications. Installation is handled by machinists and CNC toolroom technicians using the clamp-style insert holding method standard to the CoroCut QD system.

This insert is intended for use in CoroCut QD series toolholders and blade-style parting systems configured for the G insert seat size. Typical applications include cutoff, face grooving, and external grooving on small to medium diameter workpieces in production turning environments. The neutral hand designation makes it suitable for straight radial parting cuts. The PVD-coated 1125 grade performs well across a range of materials where edge sharpness and coating adhesion are priorities.

Key Features

• 3 mm cutting width for parting and grooving operations
• Carbide substrate with 1125 grade and PVD-applied TiCrAlN and TiAlN coating
• CM chipbreaker geometry for controlled chip evacuation
• Neutral lead angle and neutral hand for straight radial cuts
• 7-degree relief angle with 0.20 mm corner radius
• Clamp-style insert holding method, G insert seat size, CoroCut QD series

Compatibility

Designed for use in CoroCut QD series toolholders and parting blades that accept the G insert seat size with a 3 mm cutting width. Verify holder and blade specifications before ordering.

Installation Notes

Insert replacement should be performed by a qualified machinist or CNC toolroom technician with the machine powered down and in a locked-out state. Use the appropriate insert clamp and torque tool specified by the toolholder manufacturer for the CoroCut QD clamping system. Inspect the insert seat and clamp for wear or damage before seating the new insert. Follow the toolholder manufacturer guidelines for insert orientation and seating confirmation before resuming cutting operations.