Iscar 5606069 Milling Insert T490 Lnht 130631PNTR IC830

Product Description

The ISCAR 5606069 is a solid carbide milling insert designed for use in HELITANG series face and shoulder milling cutters. Carrying the ANSI designation T490 LNHT 130631PNTR IC830, this double-sided insert features a butterfly (LNHT) shape with a helical cutting edge style and a negative rake geometry. It is coated with an AlTiN and TiN Sumotec PVD coating in grade IC830, making it well-suited for aggressive milling of steel, stainless steel, superalloys, and titanium. The insert provides 4 cutting edges, a corner radius of 0.122 inches, and a maximum depth of cut of 0.492 inches. It is held in the cutter body by a screw and is designed for right-hand cutting operations.

This insert is intended for industrial machining environments where high-performance shoulder and face milling is required on difficult-to-machine materials including steel (P), stainless steel (M), and superalloys and titanium (S). The IC830 grade with PVD coating is particularly effective in interrupted cuts and finishing-to-semi-finishing passes where heat resistance and edge toughness are priorities. Installation is performed by qualified machinists or tooling technicians on CNC milling machines equipped with compatible HELITANG T490 LNK13 series cutter bodies.

Key Features

• Double-sided insert with 4 usable cutting edges for extended tooling economy
• AlTiN and TiN Sumotec PVD coating (IC830 grade) for heat resistance in steel and superalloy milling
• Helical cutting edge style with negative rake reduces cutting forces on entry
• Corner radius of 0.122 inches for controlled edge transition and surface finish
• Maximum depth of cut of 0.492 inches suitable for both roughing and semi-finishing passes
• Screw-held mounting for secure, repeatable insert positioning in the cutter body
• Conforms to ANSI and ISO 13399 standards for interoperability documentation

Compatibility

Designed for use with ISCAR HELITANG T490 LNK13 series milling cutter bodies. Cutter series compatibility is listed as T490 LNK13. Verify cutter body seat geometry and screw torque specifications against the applicable ISCAR tooling catalog before installation.

Installation Notes

Insert replacement and indexing should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the spindle before accessing the cutter body. Use the correct TORX or hex key as specified by the cutter body manufacturer for the insert clamping screw. Inspect the insert seat and screw threads for damage before seating a new insert, and confirm the insert is fully seated with no rocking before resuming cutting operations.