Sandvik Coromant 7231483 Turning Insert VBMT331-MF 2220

Product Description

The SANDVIK COROMANT 7231483 is a solid carbide turning insert from the CoroTurn 107 series, designed for precision external and internal turning operations on CNC lathes and turning centers. Designated by ISO code VBMT 16 04 04-MF 2220, this insert features a 35-degree diamond shape (V) with a neutral hand orientation. The CVD-applied multilayer coating — TiCN, Al2O3, and TiN — provides wear resistance and thermal protection. With a 3/8-inch (0.3750-inch) inscribed circle and a 1/64-inch (0.0156-inch) corner radius, it is engineered for light to medium finishing cuts where tight tolerances and surface finish quality are priorities.

This insert is sized and graded for turning stainless steel and other ISO M-class workpiece materials, where edge stability and chip control are critical. The MF chip breaker geometry promotes reliable chip formation during light finishing passes. The 2220 grade and CVD multilayer coating are well-suited for the demanding conditions of stainless and similar work-hardening alloys. Installation is straightforward via screw clamping (insert holding method: screw), making it compatible with standard VBMT-style toolholders used in production and job-shop turning environments.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for extended tool life on stainless steel
• 35-degree diamond insert shape (V) with neutral hand — suitable for profiling and finishing passes
• MF chip breaker geometry optimized for light finishing with controlled chip evacuation
• 3/8-inch (0.3750-inch) inscribed circle and 1/64-inch (0.0156-inch) corner radius for precision fitment
• Screw-clamp holding method compatible with standard VBMT-style toolholders
• 2 cutting edges per insert for cost-effective indexing

Compatibility

Designed for use in VBMT-style screw-clamp toolholders as part of the SANDVIK COROMANT CoroTurn 107 system. ISO code VBMT 16 04 04-MF 2220 provides cross-reference compatibility with standard VBMT toolholder pockets. Minimum order quantity is 10 inserts; package quantity is 1.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician familiar with CNC turning center setup. Power down and lock out the machine spindle before indexing or replacing inserts. Seat the insert fully in the pocket and torque the clamping screw to the toolholder manufacturer's specification — do not overtighten, as carbide inserts are brittle and can crack under excess clamp force. Inspect the insert pocket for chips or debris before seating a new insert to ensure proper contact and runout.