Sandvik Coromant 7861022 Cutoff Insert Corocut Qd

Product Description

The SANDVIK COROMANT 7861022 is a carbide cutoff insert designed for parting and grooving operations on CNC lathes and turning centers. Part of the CoroCut QD series, this insert features a 0.1181-inch cutting width and a neutral lead angle, making it suitable for straight plunge cuts. The insert is manufactured from a CVD-coated cemented carbide (HC) substrate with a TiCN/Al2O3/TiN multilayer coating in grade 4425, providing wear resistance and thermal stability in steel and cast iron machining applications. A 7-degree relief angle and 0.0118-inch corner radius complete the geometry. Installation is performed by machinists and CNC operators.

This insert is used in production turning environments where consistent groove width and clean part-off cuts are required. The CR chipbreaker designation supports chip control in medium to finishing-range cutting conditions. The neutral cutting direction allows use on standard right-hand toolholders configured for CoroCut QD insert pockets. Typical applications include bar stock parting, undercut grooving, and recessing on ferrous and non-ferrous workpieces in both job-shop and high-volume production settings.

Key Features

• 0.1181-inch cutting width for precise groove and parting dimensions
• CVD-applied TiCN/Al2O3/TiN coating improves crater and flank wear resistance
• Grade 4425 carbide substrate suited for steel and cast iron turning
• 7-degree relief angle reduces rubbing and extends edge life
• CR chipbreaker geometry supports chip evacuation in medium finishing cuts
• Neutral lead angle and neutral hand for straight plunge entry

Compatibility

Designed for use with CoroCut QD series toolholders that accept QD-N style inserts with size code G. Confirm toolholder pocket specification before ordering.

Installation Notes

Insert seating and clamping should be performed by a qualified machinist following the toolholder manufacturer's torque and clamping guidelines. Power down and lock out the machine spindle before changing inserts. Inspect the insert pocket for chips or debris before seating the new insert. Do not use damaged or chipped inserts, as insert failure during high-speed parting operations presents a serious safety hazard.