Sandvik Coromant 6427407 Cutoff Insert 4mm Corocut Qd

Product Description

The SANDVIK COROMANT 6427407 is a solid carbide cutoff insert in the CoroCut QD series, designed for parting and grooving operations on CNC lathes and turning centers. It features a 4 mm cutting width, a neutral hand orientation, and a 0-degree lead angle, making it suitable for straight plunge cutting applications. The insert carries manufacturer grade 1125 with a TiCrAlN and TiAlN PVD coating for wear resistance and thermal stability. A CM chipbreaker geometry controls chip flow during cutoff operations. Machinists and CNC operators in precision machining shops install this insert as a replacement or production consumable in compatible CoroCut QD toolholders.

This insert is intended for use in metal cutting environments where controlled chip evacuation and consistent part-off performance are required. It fits turning centers handling ferrous and non-ferrous workpieces where a 4 mm wide groove or full cutoff is needed. The neutral hand designation allows use in standard straight-plunge setups. With an overall length of 0.4724 inches and an insert seat size of H, it seats into CoroCut QD-style clamp-type toolholders. Production machinists and CNC setup technicians are the primary installers of this consumable insert.

Key Features

• 4 mm cutting width with 0-degree neutral lead angle for straight plunge parting
• Solid carbide construction with manufacturer grade 1125
• PVD-applied TiCrAlN and TiAlN dual coating for extended tool life
• CM chipbreaker geometry for reliable chip control during cutoff
• 7-degree relief angle reduces rubbing and flank wear
• 0.20 mm corner radius for controlled edge geometry at parting groove

Compatibility

Designed for use with CoroCut QD series clamp-type toolholders accepting insert seat size H. Catalog reference number QD-NH-0400-0002-CM 1125 can be used to cross-reference compatible toolholder models in the CoroCut QD system.

Installation Notes

This insert is installed by a qualified CNC machinist or toolroom technician. Power down and lock out the machine spindle before seating or replacing any cutting insert. Use the appropriate torx or hex key to engage the clamping mechanism to the toolholder manufacturer specification. Inspect the insert seat and clamping components for chips or debris before seating the new insert to ensure proper contact and tool stability.