Sandvik Coromant 5755968 Turning Insert VNMG331-LC 1525

Product Description

The SANDVIK COROMANT 5755968 is a cermet turning insert with a VNMG geometry, designed for precision external turning operations on CNC lathes and turning centers. Manufactured to the ISO designation VNMG160404LC1525, this insert carries a PVD-applied TiCN and TiN multilayer coating over a cermet substrate, delivering high wear resistance and a smooth surface finish on steel and similar primary workpiece materials. The 35-degree diamond shape with a neutral hand orientation suits a wide range of profiling and finishing passes. Insert length measures 16.61 mm (0.6539 inches), and the inscribed circle diameter is 0.3750 inches. Installation is performed by licensed machinists and CNC operators maintaining toolholders to manufacturer torque and clamping specifications.

This insert is suited for medium to finish turning of steel workpieces in both production and job-shop environments. The LC chip breaker geometry is optimized for light finishing cuts where tight surface finish tolerances are required. The T-Max P series designation indicates compatibility with Sandvik Coromant T-Max P toolholder systems. The insert is held using a clamp and pin method, common in production turning setups. A maximum depth of cut of 16.21 mm (0.6382 inches) defines its operational envelope. Minimum order quantity is 10 inserts per order, with individual packaging quantity of 1.

Key Features

• PVD-coated cermet substrate with TiCN and TiN layers for wear resistance in steel turning
• VNMG insert style with 35-degree diamond shape and neutral hand for versatile profiling and finishing
• LC chip breaker geometry optimized for light finishing cuts and tight surface finish requirements
• Corner radius of 0.40 mm (1/64 inch) for precision contour and finish turning
• Clamp and pin holding method compatible with standard VNMG-style toolholders
• ISO designation VNMG160404LC1525 for direct cross-reference and toolholder matching

Compatibility

Designed for use in SANDVIK COROMANT T-Max P series toolholders accepting VNMG-style inserts. ISO code VNMG160404LC1525 can be used to identify compatible toolholder seats across standard VNMG insert systems. Grade 1525 is rated for primary workpiece material code P, indicating suitability for steel turning applications.

Installation Notes

Insert installation and replacement should be performed by qualified machinists or CNC operators with the machine spindle fully stopped and the machine placed in a locked-out, de-energized state per applicable safety procedures. Use the appropriate torque wrench and clamp screw specified by the toolholder manufacturer when seating the insert. Inspect the pocket seat and clamping components for wear or debris before installing a new insert. Do not exceed the maximum depth of cut rating for this insert geometry.