Iscar 5682020 Milling Insert T490 Lnht 1306PNTR-RD IC810

Product Description

The ISCAR 5682020 is a solid carbide milling insert designated T490 LNHT 1306PNTR-RD in IC810 grade, designed for use in high-productivity face and shoulder milling operations. This double-sided, right-hand insert features a butterfly (LNHT) shape with a helical cutting edge style and a negative rake geometry, delivering four usable cutting edges per insert. The IC810 grade incorporates an AlTiCrN plus TiN coating applied via PVD Sumotec process, providing thermal resistance and wear protection in demanding metal removal applications. It measures 0.5437 inches in cutting edge effective length and 0.5140 inches thick, with a 0.0335-inch corner radius for controlled edge engagement.

This insert is engineered for milling steel and cast iron workpieces, covering primary material codes P and K. It fits holders in the ISCAR HELITANG T490 LNK13 cutter series and operates at a maximum depth of cut of 0.4920 inches (12.50 mm). The T490 platform is commonly applied in roughing and semi-finishing operations on machining centers in both job shop and production environments. The screw-clamping retention method provides rigid, repeatable insert seating. The RD chip breaker geometry is optimized for the stated workpiece materials at standard cutting parameters for this insert size code (1306).

Key Features

• IC810 grade with AlTiCrN plus TiN Sumotec PVD coating for extended tool life in steel and cast iron
• Double-sided insert with 4 cutting edges per insert for reduced tooling cost per edge
• Helical cutting edge style reduces entry shock and lowers cutting forces
• Negative rake, 90-degree included angle geometry for stable, rigid chip formation
• Maximum depth of cut: 0.4920 inches (12.50 mm)
• Screw-clamping insert holding method for secure, repeatable positioning
• Conforms to ANSI and ISO 13399 standards

Compatibility

Compatible with the ISCAR HELITANG T490 LNK13 cutter series. Verify cutter body pocket dimensions and insert seat geometry against the T490 LNHT 1306PNTR-RD designation before installation.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Power down and lock out the spindle before changing inserts. Use the manufacturer-specified torx or hex key to seat the clamping screw; do not overtighten, as this can crack the carbide substrate. Inspect the insert pocket and seating surfaces for chips or debris before seating a new insert to ensure proper contact and runout.