Sandvik Coromant 5735931 Cutoff Insert Carbide 4mm Corocut 1-2

Product Description

The SANDVIK COROMANT 5735931 is a solid carbide cutoff insert manufactured to N123H1-0400-0002-CM 2135 specification, designed for parting and grooving operations on CNC lathes and turning centers. It carries a 4.00 mm cutting width, a neutral lead angle, and a 7-degree relief angle that supports clean chip evacuation during cutoff. The insert features a CM chipbreaker geometry and a multi-layer MTCVD coating of TiCN/Al2O3/TiN, which provides thermal resistance and wear protection at elevated cutting speeds. A 0.20 mm corner radius reduces edge stress on the workpiece. This insert is installed by machinists and toolroom technicians performing production turning or job-shop cutoff work.

This insert is part of the CoroCut 1-2 series, intended for parting, grooving, and turning applications on ferrous and non-ferrous materials in both light and medium-duty cutting conditions. Typical installations include CNC turning centers running production cutoff cycles where consistent chip control and insert life are critical. The clamp-style insert holding method suits standard CoroCut 1-2 toolholders with an H-size insert seat. Both the insert hand and lead angle direction are neutral, making it suitable for straight plunge cutoff without offset angling. Minimum order quantity is 10 inserts; inserts are packaged individually per unit.

Key Features

• Solid carbide substrate with MTCVD-applied TiCN/Al2O3/TiN multi-layer coating for extended tool life
• 4.00 mm cutting width with neutral lead angle for straight plunge parting
• CM chipbreaker geometry supports controlled chip formation in grooving and cutoff
• 0.20 mm corner radius minimizes stress concentration at the cut
• 7-degree relief angle promotes clearance and reduces flank wear
• Clamp-style holding method compatible with H-seat CoroCut 1-2 toolholders

Compatibility

Designed for use in CoroCut 1-2 series toolholders accepting an H insert seat size. Insert style is N123x1 as specified by the manufacturer. Verify toolholder seat size and clamping system compatibility before installation.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Power down and lock out the machine spindle before seating or removing the insert. Use the correct clamp screw torque as specified by the toolholder manufacturer — do not estimate or substitute fasteners. Inspect the insert pocket and clamping surfaces for chips or debris before seating a new insert to ensure proper seating and avoid premature edge failure.