Sandvik Coromant 5754908 Turning Insert TPMR322 Carbide

Product Description

The SANDVIK COROMANT 5754908 is a solid carbide turning insert with a TiCN and TiN coating, designed for precision metal-turning operations on CNC lathes and turning centers. It carries the ANSI insert code TPMR322 and ISO insert code TPMR160308. The triangular insert shape provides three usable cutting edges, and the positive side clearance geometry reduces cutting forces during finishing passes. At 0.618 inches in length with a 3/8-inch inscribed circle and a 1/32-inch corner radius, this insert is suited for light to moderate material removal on steel and stainless steel workpieces requiring tight tolerances and fine surface finishes.

This insert is configured for finishing chip-breaker operation and is rated for primary workpiece materials in the P (steel) and M (stainless steel) ISO material groups. Grade 235 delivers moderate wear resistance combined with high toughness, making it appropriate for both stable and mildly interrupted cuts at finishing parameters. It is installed using a clamp-style insert-holding method and is a standard choice for machinists running finish-turning operations on low-alloy steels, carbon steels, and austenitic stainless grades.

Key Features

• TiCN and TiN dual-layer coating improves surface hardness and reduces built-up edge on steel and stainless steel
• Grade 235 balances moderate wear resistance with high toughness for finishing applications
• Positive side clearance geometry lowers cutting forces and heat generation
• Three cutting edges per insert on a 60-degree triangular body maximize tool economy
• 1/32-inch corner radius supports fine surface finish requirements
• Clamp-style holding method ensures secure seating in compatible toolholders

Compatibility

Designed as a direct-fit replacement for TPMR322-geometry insert seats in clamp-style turning toolholders accepting a 3/8-inch inscribed circle, 1/8-inch thick, 60-degree triangular insert. Compatible with ISO TPMR 16 03 08 toolholder pockets.

Installation Notes

Turning insert replacement is performed by licensed machinists or toolroom personnel. Before indexing or replacing inserts, power down the spindle and confirm the machine is in a safe, locked-out state per applicable shop safety procedures. Use the correct torque wrench and manufacturer-specified clamping hardware when seating the insert to avoid micro-cracking the carbide substrate. Do not use damaged or deformed insert seats, as uneven clamping can cause premature insert failure or workpiece damage.