Iscar 5550419 SNMG433NR IC8250 Turning Insert 1/2in Ic

Product Description

The ISCAR 5550419 is a SNMG433NR IC8250 grade solid carbide turning insert designed for external and internal turning operations on CNC lathes and turning centers. The insert features a multilayer PVD coating of TiCN, Al2O3, and TiN, which provides wear resistance and thermal stability during continuous and interrupted cuts. It carries a 90-degree square profile with a 0.0469 inch corner radius, a 0.5 inch inscribed circle, and a 0.1875 inch insert thickness. The IC8250 grade is suited for steel and stainless steel workpiece materials. Licensed machinists and CNC operators install this insert as part of toolholder assemblies in production turning applications.

The ISCAR 5550419 belongs to the Isoturn series and is intended for use in turning operations on steel (ISO P) and stainless steel (ISO M) workpiece materials. It is held in place by clamp and pin retention, standard on SNMG-style toolholders. Typical applications include general-purpose external turning, facing, and profiling passes where a square insert geometry and moderate corner radius are appropriate. Maximum depth of cut is 0.197 inch (5.00 mm). This insert is sold individually but carries a minimum order quantity of 10 units per order.

Key Features

• IC8250 PVD multilayer coating: TiCN, Al2O3, and TiN for wear and heat resistance
• 90-degree square insert shape (ISO code S) with SNMG433 geometry
• 0.5 inch inscribed circle and 0.0469 inch corner radius for precise edge engagement
• Compatible with clamp and pin toolholder retention methods
• Maximum depth of cut: 0.197 inch (5.00 mm)
• Conforms to ISO 13399 cutting tool data standards

Compatibility

Designed for use in SNMG-style toolholders that accept clamp and pin retention. Suited for turning operations on ISO P (steel) and ISO M (stainless steel) workpiece materials as specified by the manufacturer. Consult ISCAR Isoturn series toolholder specifications to confirm seat and clamp compatibility before installation.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Always index or replace inserts with the machine powered down and the spindle locked. Use the appropriate torque wrench and clamp hardware specified for the SNMG seat to avoid seat damage or insert movement under cutting loads. Inspect the toolholder pocket and seating surface for wear or debris before seating a new insert.