Iscar 5598220 VNMG332NF IC8250 Turning Insert Solid Carbide

Product Description

The ISCAR 5598220 is a VNMG332NF turning insert in grade IC8250, designed for precision external turning operations on CNC lathes and turning centers. The insert features a multilayer PVD coating of TiCN, Al2O3, and TiN over a solid carbide substrate, delivering wear resistance and thermal stability in demanding cutting conditions. It carries a 35-degree diamond shape (V), a neutral clearance angle (N), and a positive rake geometry with the NF chip breaker configuration, optimized for finishing passes. At 0.654 inches in length with a 3/8-inch inscribed circle and a 1/32-inch corner radius, it is sized for medium turning applications.

The 5598220 insert is engineered for turning stainless steel and carbon and alloy steel, corresponding to ISO material codes M and P. It belongs to ISCAR's Isoturn series and is held in place using a clamp and pin method. With a maximum depth of cut of 0.118 inches and an insert thickness of 3/16 inches, it suits finishing and light semi-finishing operations where surface finish and dimensional accuracy are priorities. This insert is a direct replacement-style consumable typically installed by CNC machinists and toolroom technicians in production and job-shop environments.

Key Features

• Grade IC8250 solid carbide with PVD-applied TiCN, Al2O3, and TiN multilayer coating
• 35-degree diamond insert shape (VNMG) with positive rake geometry
• NF chip breaker for controlled chip formation in finishing cuts
• 3/8-inch inscribed circle and 1/32-inch corner radius for accurate light-material engagement
• Clamp and pin holding method for secure seating in compatible toolholders
• Compliant with ISO 13399 cutting tool representation standards

Compatibility

Designed as an OEM-style replacement turning insert for use in VNMG-style toolholders within the ISCAR Isoturn series, suitable for stainless steel and steel workpiece materials per ISO material codes M and P.

Installation Notes

Installation is performed by CNC machinists or toolroom technicians. Before indexing or replacing the insert, power down the machine and ensure the spindle is fully stopped. Seat the insert firmly in the toolholder pocket and verify the clamp and pin are torqued and secured according to the toolholder manufacturer's specifications before resuming cutting. Inspect the insert seat and pocket for chips or debris that could affect seating accuracy.