Iscar 5606070 Milling Insert T490 Lnht 130631PNTR IC330

Product Description

The ISCAR 5606070 is a solid carbide milling insert carrying the ANSI designation T490 LNHT 130631PNTR IC330. It belongs to the HELITANG series and is designed for use in high-performance shoulder and face milling applications. The insert features a butterfly (LNHT) shape with a helical cutting edge style and a negative rake geometry. It is double-sided with 4 cutting edges, extending tool life between index cycles. The IC330 grade uses a PVD-applied TiCN and TiN coating, which provides wear resistance and heat tolerance when cutting steel, stainless steel, and superalloys. The corner radius is 0.122 inches (3.10 mm) and the maximum depth of cut is 0.492 inches (12.50 mm).

This insert is suited for milling steel, stainless steel, superalloys, and titanium in both production and job-shop environments. The PNTR chip breaker geometry helps control chip flow during interrupted and continuous cuts. The right-hand configuration and 90-degree included angle make it compatible with standard HELITANG T490 cutter bodies used in CNC machining centers and manual mills. The screw-held mounting method ensures positive seating and repeatable edge positioning across index cycles. Typical users include CNC machinists and toolroom operators running ferrous and difficult-to-machine alloys.

Key Features

• Double-sided insert with 4 cutting edges for extended tool life per insert
• IC330 grade with PVD TiCN and TiN coating for wear and heat resistance
• Helical cutting edge style with PNTR chip breaker for controlled chip evacuation
• 0.122-inch corner radius and 0.492-inch maximum depth of cut
• Negative rake, 90-degree included angle geometry for shoulder milling
• Compliant with ANSI and ISO 13399 insert standards

Compatibility

Compatible with ISCAR T490 LNK13 cutter series (T490 LNHT 130631PNTR IC330 per ANSI and ISO designations). Designed for use in HELITANG T490 series cutter bodies accepting size 13 LNHT inserts.

Installation Notes

Installation is performed by CNC machinists or toolroom technicians. Power down and lock out the spindle before indexing or replacing inserts. Seat the insert fully in the pocket and tighten the clamping screw to the cutter body manufacturer's specified torque — do not substitute a generic value. Inspect the pocket seat and clamping surfaces for chips or damage before seating a new insert edge.