Sandvik Coromant 5732818 Cutoff Insert 4mm T-max Q-cut

Product Description

The SANDVIK COROMANT 5732818 is a solid carbide cutoff insert designed for parting and grooving operations on CNC lathes and turning centers. Carrying the L151.2 insert style designation with a 4.00 mm (0.1575 inch) cutting width, this insert seats in T-Max Q-Cut toolholders using a clamp-style holding method. The grade 235 carbide substrate receives a CVD-applied TiCN/TiN coating, providing wear resistance and thermal stability during interrupted or continuous cut-off cycles. A 7-degree relief angle and a 0.30 mm corner radius (0.0118 inch) define the cutting geometry, while the 4E chipbreaker controls chip formation in a range of workpiece materials.

This insert is suited for production turning environments where consistent part-off quality and tool life are priorities. It is configured for left-hand lead angle applications, making it appropriate for specific toolholder orientations on gang-slide or turret lathes. Machinists, CNC setup technicians, and toolroom professionals working in metalworking facilities are the primary users. The 0-degree lead angle geometry keeps radial forces predictable during cutoff, reducing deflection on slender workpieces or thin-wall tubing.

Key Features

• Solid carbide construction with CVD TiCN/TiN coating for extended wear life
• 4.00 mm cutting width for precise parting and grooving operations
• Grade 235 substrate balanced for general-purpose turning materials
• 4E chipbreaker geometry for reliable chip control
• 7-degree relief angle reduces rubbing and heat buildup at the cutting edge
• 0.30 mm corner radius minimizes stress concentration at the groove base

Compatibility

Designed for use with T-Max Q-Cut toolholders accepting L151.2-style inserts at insert seat size 40. Verify toolholder seat size and clamp style before installation.

Installation Notes

Installation should be performed by a qualified machinist or CNC technician with the machine in a full stop, lockout/tagout state before insert indexing or replacement. Seat the insert fully in the pocket and confirm clamp engagement before resuming cutting operations. Inspect the insert seat for chips or debris that could affect seating and cause premature edge failure. Follow the toolholder manufacturer's clamping torque guidance for the specific toolholder model in use.