Sandvik Coromant 5755665 Turning Insert VBMT331-MM 2025

Product Description

The SANDVIK COROMANT 5755665 is a solid carbide turning insert designed for precision metal cutting in CNC lathe and turning center applications. Manufactured to the VBMT 16 04 04-MM 2025 ISO designation, this insert features a 35-degree diamond shape with a neutral hand orientation and a 0.0156-inch corner radius. The CVD-applied multilayer coating — TiCN, Al2O3, and TiN — provides wear resistance and thermal protection suited to demanding cutting conditions. The MM chip breaker geometry is engineered for controlled chip evacuation. This insert is installed by CNC machinists and tooling specialists in production and job-shop environments.

The 5755665 is rated for primary use on stainless steel workpiece materials (ISO material code M), making it appropriate for industries that machine austenitic and ferritic grades. It fits into VBMT-style insert pockets on compatible CoroTurn 107 toolholders. The screw-lock holding method requires a standard Torx or hex drive appropriate to the toolholder pocket. Insert size code 331, inscribed circle of 0.375 inches, and a 0.1875-inch insert thickness are the key dimensional references when selecting a matching toolholder seat.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for extended tool life on stainless steel
• 35-degree diamond insert shape (code V) with 5-degree relief angle and B clearance code
• MM chip breaker geometry for controlled chip formation and evacuation
• Neutral hand orientation — compatible with both left- and right-hand toolholder pockets designed for neutral inserts
• Screw-lock holding method for secure, repeatable insert positioning
• Two cutting edges per insert for extended service life per unit

Compatibility

Designed for use with VBMT-style insert pockets in the CoroTurn 107 toolholder series. ISO designation VBMT 16 04 04-MM 2025 is the reference for confirming pocket and seat compatibility. Primary workpiece material is stainless steel (ISO code M).

Installation Notes

Installation is performed by qualified CNC machinists or toolroom technicians. Before changing inserts, power down the spindle and confirm the machine is in a safe, locked-out state per shop safety procedures. Use the correct Torx or hex key specified by the toolholder manufacturer to seat and torque the clamping screw — do not use the insert seating torque from a different toolholder family. Inspect the insert pocket and shim seat for damage or debris before seating the new insert.